It's Only Money (1962)

Lester is a clumsy and awkward TV repair man who is nevertheless gifted technically. In helping out a friend, he is drawn into a mystery involving a missing heir in a rich family. He begins to notice little things, like how much those family portraits look like him. Surely..no..he can't be...can he ?

Directed by: Frank Tashlin

Starring: Jerry Lewis, Joan O'Brien, Zachary Scott, Jack Weston, Jesse White, Mae Questel

Links: Paramount Pictures, IMDb, Movie posters, Movie stills