12 Angry Men is a 1957 American legal drama film directed by Sidney Lumet in his feature directorial debut, adapted by Reginald Rose from his 1954 teleplay. A critique of the American jury system during the McCarthy era, the film tells the story of a jury of twelve men as they deliberate the conviction or acquittal of a teenager charged with murder on the basis of reasonable doubt; disagreement and conflict among the jurors forces them to question their morals and values. It stars an ensemble cast, featuring Henry Fonda, Lee J. Cobb, Ed Begley, E. G. Marshall, and Jack Warden.