Trivia: Nathan was added into Nicely and Benny's number 'Guys and Dolls' to increase Sinatra's singing part.
Trivia: Writer Paddy Chayefsky has a cameo as "Leo", who appears in the back of the car when Marty is approached by his friends.
Trivia: At the very end of the film the camera is zooming out with the observatory in the middle of the screen. Right before the credits begin, a man in a brown suit carrying a briefcase walks up to the observatory. This man is Nicholas Ray, the director of Rebel Without A Cause.
Trivia: The title song from this musical is also the official state song of the state of Oklahoma.
Trivia: Hitchcock's cameo occurs about 10 minutes into this film - he is seen sitting next to Cary Grant on a bus.