Black Legion is a 1937 American crime drama film, directed by Archie Mayo, with a script by Abem Finkel and William Wister Haines based on an original story by producer Robert Lord. The film stars Humphrey Bogart, Dick Foran, Erin O'Brien-Moore and Ann Sheridan. It is a fictionalized treatment of the historic Black Legion of the 1930s in Michigan, a white vigilante group. A third of its members lived in Detroit, which had also been a center of the Ku Klux Klan in the 1920s.