The first, and only, film made by Annette Day. Producer Judd Bernard found her while he was with his wife shopping in London and entered an antique shop owned by her parents. He asked her to have lunch with him and talk about a part in a movie. Bernard, Day and Lee Marvin had lunch together in a hotel. Later Bernard went back to Hollywood, and soon Day got a message from him asking her to travel to Hollywood and make a screen test. She got a role in the movie.
One lucky Elvis Presley fan bought a jacket as a gift to Elvis. Elvis told her to watch the movie carefully when it came out. The film came out and she saw that the jacket was in the suitcase which belongs to Elvis' character on film.