The opening credits are played over Clark driving home from work, happily singing along to a Beach Boys tune, driving very carelessly.
The end credits list Sid Caesar's character as the generic title of "old man", even though the character is given a proper name, Mr. Ellis, in the film.
Sid Caesar's name appears in the opening credits of the film, even though he doesn't appear until the last 15-20 minutes of the movie, and only for one scene.