This was the fourth biographical figure played by Chadwick Boseman. He also played James Brown in Cất Giọng Lên (2014), Jackie Robinson in Cầu Thủ Bóng Chày (2013), and Floyd Little in The Express: Câu chuyện của Ernie Davis (2008).
When Marshall arrives at the train station, he arrives in Central Terminal, a real historic train station in Buffalo, NY. The building is a wreck in real life, and the windows shown were digitally restored.
Sam Friedman attends Temple Rodeph Shalom with his family. "Rodeph shalom" (sometimes spelled "rodef shalom") is Hebrew for "pursuer of peace." The Talmud applies this label to a person who stands for justice, as Friedman does in this movie.
Several scenes take place outside the courthouse. They were shot on the steps of Buffalo, New York, City Hall.