- Awesome, Dear Boy: In order to secure Audrey Hepburn and Fred Astaire on the cast, producers told each the other was already signed, figuring they would not pass up the opportunity to work together.
- Real-Life Relative: Audrey Hepburn's mother Baroness Ella Van Heemstra appears as a sidewalk cafe patron.
- Shout-Out: Received one in one of the Star Trek: Discovery "Short Treks" webisodes, "Calypso," where two characters have a movie night with the film.
- What Could Have Been: Among those considered for Jo Stockton were Grace Kelly and Debbie Reynolds.
Trivia / Funny Face