Cast member Marli Renfro had earlier appeared as Janet Leigh's nude body double in Alfred Hitchcock's Psycho (1960).
Director Francis Ford Coppola shot the film in a motel room in two days and slept in the same room after filming was done for each day.
Directorial debut of Francis Ford Coppola.
Francis Ford Coppola has written that he edited his 12 minute short film "The Peeper", into a western called "The Wide Open Spaces", which he had nothing to do with, but which had failed to attract a distributor.
El Rey Casino owner Lucky Willie Martello had a cameo as The Pit Boss, wearing his trademark white hat.