- Box Office Bomb: Earned only $2,683,519 on a $2 million budget, but was a success on home video. However, this only ensured the next two sequels would go direct-to-video.
- Creator Backlash: The film's producer, Peter Simpson, ultimately regretted the decision to title the film as a sequel to Prom Night, and felt the marketing campaign was "silly and capricious." Simpson later said the film should be taken on its own merits and not viewed as a sequel.
- Dawson Casting: As per usual, most of the high-schoolers were played by twentysomethings. Lisa Schrage, as 17-year-old Mary Lou, was 30 at the time of production, and Terri Hawkes was 29 as Kelly.
- Executive Meddling: Peter Simpson was unhappy with director Bruce Pittman's original cut, feeling it wasn't scary enough. Simpson ordered around 1/3 of the movie to be reshot under the direction of screenwriter Ron Oliver, who (at the time) had never directed a movie before. The reshoots primarily dealt with "horror" scenes (such as Vicki's interactions with the demonic rocking horse), with the intention of upping the scare factor.
- Follow the Leader: The film leans towards supernatural slasher genre á la Elm Street.
- Germans Love David Hasselhoff: According to screenwriter Ron Oliver, the film received much better critical and audience reception in the US than its native Canada.
Trivia / Hello Mary Lou: Prom Night II