12 Angry Men is a 1957 American courtroom drama film directed by Sidney Lumet, adapted from a teleplay of the same name by Reginald Rose. This courtroom drama tells the story of a jury of 12 men as they deliberate the conviction or acquittal of an 18-year old defendant on the basis of reasonable doubt, forcing the jurors to question their morals and values.

References:
https://en.wikipedia.org/wiki/12_Angry_Men_(1957_film)