It’$ Only Money (1962)

Director: Frank Tashlin
Cast: Barbara Pepper, Jack Weston, Jerry Lewis, Jesse White, Joan O'Brien, Mae Questel, Pat Dahl, Zachary Scott

Synopsis:

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 ?