Trivia: Several actresses with bit parts in this film went on to bigger and better things. The English teacher is played by Margaret Colin ("Independence Day", "The Devil's Own"). Benny's snobby brunette friend in gym class is Gina Gershon, and the blonde girl eying Duckie at the very end is Kristy Swanson (credited as "Duckette").
Trivia: There was an original ending filmed which showed Andie and Duckie ending up together. However, test audiences felt that Andie should end up with Blaine. Also, John Hughes felt that putting Andie with Duckie would make it seem as if the movie's message was that people from different backgrounds shouldn't get together. Therefore, the new ending with Andie kissing Blaine was shot.