Colegio infernal

The blonde girl in the number 46 track jersey was cut out of the film as much as possible due to being fired for refusing to fulfill the nudity requirements. Linnea Quigley was hired to replace her, and in a 2004 interview talked about her big break: "I got Graduation Day by going in and having to act scared. This other girl had already been cast as Dolores, but once she got on the set she refused to show her breasts, so they called me and I was scared too, but I wanted to do the film so badly, and back then it was like a huge no no to refuse to do nudity, so I guess I got lucky." It wasn't her first time to do nude scenes though as she had already been fully nude in previous films, including one where she played a 15-year old girl (she was 21 at the time) who danced naked during a movie audition.

Laura's jersey number repeatedly changes between 45 and 40 during the opening sequence.

After the final credits, the killer is shown holding the stopwatch he uses to time his murders.

Australian version runs eight minutes longer than the U.S. release. This version was briefly released in the U.S. as a director's cut.

Featured in Festín de media noche (1987)