Duel Personalities is a 1939 Our Gang short comedy film directed by George Sidney. It was the 177th Our Gang short (178th episode, 89th talking short, 90th talking episode, and 9th MGM produced episode) that was released.
Plot
Upset that his youthful sweetheart Darla has once again thrown him over in favor of neighborhood bully Butch, Alfalfa tries to forget his troubles by watching a sidewalk performance by famed hypnotist Professor William Delmore. Chosen as a subject, Alfalfa is hypnotized into believing that he is the fearless D'Artagnan, of Three Musketeers fame. Armed with this bold new personality, Alfalfa not only sweeps Darla off her feet, but also challenges the dumbfounded Butch to a duel. The results, while not deadly, are devastating.