Isabelle Huppert poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Isabelle Huppert poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Ella Hunt and Isabelle Fuhrman pose for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Ella Hunt and Isabelle Fuhrman pose for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Kevin Costner poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Kevin Costner poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Kevin Costner, left, poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Isabelle Fuhrman poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Isabelle Fuhrman poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Isabelle Fuhrman poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Abbey Lee poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Jena Malone poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Jena Malone poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Jena Malone poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Kevin Costner poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Kevin Costner poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Kevin Costner poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Kevin Costner poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Kevin Costner poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Alejandro Edda poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Michelle Yeoh poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Michelle Yeoh poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Michelle Yeoh poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Michelle Yeoh poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Michelle Yeoh poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Jena Malone poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Jena Malone poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Ella Hunt poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Ella Hunt poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Sienna Miller poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Sienna Miller poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Kevin Costner, front left, and Isabelle Fuhrman, front right, poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Daniel Cole/Invision/AP)

Alejandro Edda, from left, Hayes Costner, Jena Malone, Georgia MacPhail, Sienna Miller, Kevin Costner, Ella Hunt, Wase Chief, Abbey Lee, Isabelle Fuhrman, and Luke Wilson pose for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Daniel Cole/Invision/AP)

Julianne Moore poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Daniel Cole/Invision/AP)

Jena Malone, left, and Isabelle Fuhrman pose for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Kevin Costner poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Andreea Alexandru/Invision/AP)

Kevin Costner poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Andreea Alexandru/Invision/AP)

Kevin Costner poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Andreea Alexandru/Invision/AP)

Ella Hunt poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Daniel Cole/Invision/AP)

Isabelle Fuhrman, from left, and Ella Hunt pose for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Daniel Cole/Invision/AP)

Oli Green, left, and Marlowe Sturridge, centre pose for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Alejandro Edda, from left, Hayes Costner, Jena Malone, Georgia Macphail, Sienna Miller, Ella Hunt, Wase Chief, Abbey Lee, Isabelle Fuhrman and Luke Wilsonposes for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Kevin Costner, centre poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Alejandro Edda, from left, Hayes Costner, Jena Malone, Georgia Macphail, Sienna Miller, Ella Hunt, Wase Chief, Abbey Lee, Isabelle Fuhrman and Luke Wilsonposes for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Alejandro Edda, from left, Hayes Costner, Jena Malone, Georgia Macphail, Sienna Miller, Ella Hunt, Wase Chief, Abbey Lee, Isabelle Fuhrman and Luke Wilsonposes for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Sienna Miller poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Julianne Moore poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Julianne Moore poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Julianne Moore poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Hayes Costner, from left, Alejandro Edda, Jena Malone, Georgia Macphail, Sienna Miller, Kevin Costner, Wase Chief, Luke Wilson, Abbey Lee, Isabelle Fuhrman, and Luke Wilson, Ella Hunt, Abbey Lee, and Isabelle Fuhrman pose for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Alejandro Edda, from left, Hayes Costner, Jena Malone, Georgia MacPhail, Sienna Miller, Kevin Costner, Ella Hunt, Wase Chief, Abbey Lee, Isabelle Fuhrman, and Luke Wilsonposes for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Alejandro Edda, from left, Hayes Costner, Jena Malone, Georgia MacPhail, Sienna Miller, Kevin Costner, Ella Hunt, Wase Chief, Abbey Lee, Isabelle Fuhrman, and Luke Wilsonposes for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Kevin Costner poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Luke Wilson poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Kevin Costner poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Daniel Cole/Invision/AP)

Marlowe Sturridge poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Georgia MacPhail poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Georgia MacPhail poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Sienna Miller poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Antoine Reinartz poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Paul-Loup Sulitzer poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Paul-Loup Sulitzer poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Natasha Poly poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Alexa Chung poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Scott Eastwood poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Scott Eastwood poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Isabelle Huppert poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Isabelle Huppert poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Isabelle Huppert poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Oliver Stone poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Oliver Stone poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Oliver Stone poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Oliver Stone poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Oliver Stone poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Oliver Stone, centre, poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Andreea Alexandru/Invision/AP)

Oliver Stone poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Toni Garrn poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Toni Garrn poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Daniel Cole/Invision/AP)

Toni Garrn poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Daniel Cole/Invision/AP)

Toni Garrn poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Daniel Cole/Invision/AP)

Isabelle Huppert poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Isabelle Huppert poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Isabelle Huppert poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Isabelle Huppert poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Isabelle Huppert poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Isabelle Huppert poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Ella Hunt, from left, Abbey Lee, Jena Malone, Sienna Miller, Kevin Costner, Luke Wilson, Isabelle Fuhrman, Wase Chief and Georgia MacPhail pose for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Daniel Cole/Invision/AP)

Ellen Von Unwerth poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Andreea Alexandru/Invision/AP)

Ellen von Unwerth poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Andreea Alexandru/Invision/AP)

Isabelle Fuhrman, from left, and Ella Hunt pose for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Daniel Cole/Invision/AP)

Kevin Costner, left, and Ella Hunt pose for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Daniel Cole/Invision/AP)

Julianne Moore poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Julianne Moore poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Julianne Moore poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Julianne Moore poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Julianne Moore poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Kevin Costner poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Sienna Miller poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Andreea Alexandru/Invision/AP)

Sienna Miller poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Andreea Alexandru/Invision/AP)

Sienna Miller, left, and Marlowe Sturridge pose for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Andreea Alexandru/Invision/AP)

Marina Ruy Barbosa poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Daniel Cole/Invision/AP)

Sienna Miller poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Andreea Alexandru/Invision/AP)

Isabelle Fuhrman poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Ella Hunt poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Alejandro Edda, from left, Hayes Costner, Jena Malone, Georgia Macphail, Sienna Miller, Ella Hunt, Wase Chief, Abbey Lee, Isabelle Fuhrman and Luke Wilson pose for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Jena Malone poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Sienna Miller, from left, Marlowe Sturridge, and Oli Green poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Sienna Miller, from left, Marlowe Sturridge, and Oli Green pose for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Michelle Yeoh poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Michelle Yeoh poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Andreea Alexandru/Invision/AP)

Ella Hunt poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Kim Hnizdo poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Daniel Cole/Invision/AP)

Kim Hnizdo poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Daniel Cole/Invision/AP)

Grace Avery Costner, from left, Cayden Wyatt Costner, Kevin Costner, Hayes Costner, and Annie Costner pose for photographers upon departure from the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Millie Turner/Invision/AP)

A fan holds a poster at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Daniel Cole/Invision/AP)

Sienna Miller, from left, Kevin Costner, Wase Chief, and Luke Wilson pose for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Daniel Cole/Invision/AP)

Julianne Moore poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Sienna Miller poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Sienna Miller poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Amy Jackson poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Amy Jackson poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Jena Malone, left, and Isabelle Fuhrman pose for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Jena Malone, from left, Georgia MacPhail, Sienna Miller, Kevin Costner, Wase Chief, Luke Wilson and Ella Hunt pose for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Daniel Cole/Invision/AP)

Isabelle Huppert poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)

Georgia MacPhail, from left, Sienna Miller, Kevin Costner, Wase Chief, and Luke Wilson pose for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Paul-Loup Sulitzer poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Ella Hunt poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Scott A Garfitt/Invision/AP)

Anja Rubik poses for photographers upon arrival at the premiere of the film 'Horizon: An American Saga' at the 77th international film festival, Cannes, southern France, Sunday, May 19, 2024. (Photo by Vianney Le Caer/Invision/AP)