The Patsy (1964)

Director: Jerry Lewis
Cast: Everett Sloane, Hans Conried, Ina Balin, Jerry Lewis, John Carradine, Keenan Wynn, Peter Lorre, Phil Harris

Synopsis:

When a star comedian dies, his comedy team decides to train a ‘nobody’ to play the Star in a big TV show (a Patsy). But the man chosen, bellboy Stanley Belt (Lewis), can’t do anything right. The TV show is getting closer, and Stanley is getting worse.