DR. JEKYLL AND MR. HYDE (1931)

Testing his theory that in every man dwells a good and an force, the reserved Dr. Jekyll (Fredric March) develops a formula that separates the two, turning him into a violent
ruffian named Mr. Hyde. Thinking he has found the answer to one of life's grandest mysteries, Dr. Jekyll soon realizes he is becoming addicted to his darker self as he unleashes his violent side on earthy dance hall girl Ivy (Miriam Hopkins) and fights Hyde to regain control of his body. Director: Rouben Mamoulian. Cast: Fredric March, Miriam Hopkins, Rose Hobart , Holmes Herbert, Halliwell Hobbes, Edgar Norton and Tempe Pigotta.