Dr. Jekyll and Mr. Hyde (1931)
Academy Award for Best Writing, Adapted Screenplay (Percy Heath, Samuel Hoffenstein)Award details: (details at IMDb)
Dr. Jekyll and Mr. Hyde is a 1931 American Pre-Code horror film directed by Rouben Mamoulian and starring Fredric March. The film is an adaptation of The Strange Case of Dr Jekyll and Mr Hyde, the Robert Louis Stevenson tale of a man who takes a potion which turns him from a mild-mannered man of science into a homicidal maniac. March's performance has been much lauded, and earned him his first Academy Award.