Trivia: The large engagement ring that Grace Kelly wears in the movie is not a prop. It was a real 10-carat diamond engagement ring given to Kelly by her fiancé and later husband, Prince Rainier of Monaco.
Trivia: Actor Neville Brand who kills Elvis at the end of the film for years had young girls come up to him on the streets and yell at him, "You Killed Elvis!"
Trivia: Shirley Jones plays Julie, mother of Louise Bigelow (Susan Luckey). In real life, Jones is only four years older than Luckey.