Sienna Miller is seen handcuffed as she gets arrested by co-star Chadwick Boseman while filming a dramatic scene for "21 Bridges" in Brooklyn's Flatbush Neighborhood. 14 May 2019 Pictured: Sienna Miller and Chadwick Boseman. Photo credit: LRNYC / MEGA TheMegaAgency.com +1 888 505 6342