!!The 1980 film:

* CastingGag: Mother and daughter Janet Leigh and Creator/JamieLeeCurtis. Also ''Halloween'' co-stars Nancy Loomis and Charles Cyphers in addition to Curtis. All three interacted a lot in ''Halloween'' but are almost completely separate in this.
* CreatorCameo: John Carpenter plays Father Malone's assistant Bennett at the beginning of the film.
* HeyItsThatGuy: [[Film/{{Halloween 1978}} Laurie Strode, Sheriff Brackett and Annie Brackett]] are all in Antonio Bay for the centennial along with [[Film/{{Psycho}} Marion Crane]], [[Series/{{Maude}} Carol Traynor]], and [[Film/AllThePresidentsMen Deep Throat]]. And [[Film/ThePaperChase Professor Kingsfield]] regales a group of children with spooky campfire tales in the prologue.
** HeyItsThatVoice: Stevie's velvety radio voice is now unmistakably [[BatmanTheAnimatedSeries Catwoman]].
* ProductionPosse: As noted above, three cast members from ''Halloween'' return - Jamie Lee Curtis, Charles Cyphers and Nancy Loomis.
* RealLifeWritesThePlot: Stevie's radio station plays jazz music, because it was more affordable than rock music on such a low budget.
* RomanceOnTheSet: Adrienne Barbeau and John Carpenter were married at the time, the part of Stevie being written especially for Barbeau.
* RealLifeRelative: Janet Leigh and Creator/JamieLeeCurtis, mother and daughter.
* WhatCouldHaveBeen:
** The role of Father Malone was offered to Creator/ChristopherLee, but he couldn't make it. A role was also offered to Creator/KurtRussell.
** The original cut of the movie was only 80 minutes. To pad things out for a theatrical release, John Carpenter had several new scenes reshot. Among those includes the opening scene with John Houseman telling the ghost story. It's easy to spot the re-shot scenes, as Elizabeth's hair changes in length.