* DeletedScene: Two. [[spoiler: The reason that Sarah survived is because her roommate gave her the invitation,]] and [[spoiler: Vannacutt leading Sarah's roommate to her death.]]
* DuelingMovies: With the same year's ''[[Film/TheHaunting1999 The Haunting]]'' remake. To the surprise of many, this film actually ended up being better-received and comparatively more profitable, despite the ''Haunting'' remake featuring a much larger budget and advertising campaign, and the backing of Creator/StevenSpielberg.
* HeyItsThatGuy:
** Creator/JeffreyCombs (who plays Vannacutt) has appeared in a lot of Creator/HPLovecraft-based films.
** [[Franchise/PiratesOfTheCaribbean Barbossa]] as Price.
** [[Film/{{Ghostbusters}} Gozer]] as one of Vannacutt's nurses.
** [[Series/BuffyTheVampireSlayer Spike]] as the cameraman at the beginning!
** [[Film/{{X-Men}} Jean Grey]] is Evelyn.
** [[Series/HomicideLifeOnTheStreet J.H. Brodie's]] face has seen better days.
** Chris Kattan as Pritchard.