Films with their own trivia pages:

* ''Trivia/{{Halloween 1978}}''
* ''Trivia/HalloweenII1981''
* ''Trivia/HalloweenIIISeasonOfTheWitch''
* ''Trivia/Halloween4TheReturnOfMichaelMyers''
* ''Trivia/HalloweenTheCurseOfMichaelMyers''
* ''Trivia/HalloweenH20TwentyYearsLater''
* ''Trivia/{{Halloween 2007}}''

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* AuthorExistenceFailure:
** The death of series producer Moustapha Akkad effectively erased the chances of a ninth film in the original series.
** Dr. Loomis died before ''H20'' since Creator/DonaldPleasence passed away.
* CreatorBacklash: Rob Zombie's reaction to the studio's intent to resurrect Michael for a third film, despite his insistence (and refusal to direct) that the ''2'' was the end of the franchise.
* DawsonCasting: The series seems to love this:
** 17/18 year old Laurie Strode played by 20-year old Jamie Lee Curtis. Which isn't too bad, except that in Halloween 2, Laurie was the same age, but Jamie Lee Curtis was now 23.
** Teenagers Annie and Lynda were played by actors in their late 20's/early 30's in both the original and the remake.
** Ellie Cornell and various other actors in their early/mid-20's were cast as the teenage Rachel and friends in ''Halloween 4'' and ''5''.
** Quite more funnier is when they get one of the TropeNamers, Creator/MichelleWilliams of ''DawsonsCreek'' fame and one of the few actors to ''avert'' this trope, to play one of the main teens in ''Halloween H20''.
* DoingItForTheArt: As hard as it is to believe, Zombie's vision of the series.
* HeyItsThatGuy:
** Borders on YouLookFamiliar in that it occurs between the original and remake continuity. Danielle Harris, who played Jamie Lloyd in the Thorn films, takes the role of Annie in the remake and its sequel.
** The 2007 film has [[Film/AClockworkOrange Alex the Droog]] as Dr. Loomis, [[Literature/OneFlewOverTheCuckoosNest Billy Bibbitt]] as Sheriff Brackett, and [[Film/DawnOfTheDead Peter Washington]] as Big Joe Grizzly.
* NamesTheSame:
** Michael Myers. And we don't mean comedian [[Film/AustinPowers Mike]] [[Film/WaynesWorld Myers]]!
** Sam Loomis, the {{Badass}} psychologist, has the same name as Marion Crane's lover in ''Film/{{Psycho}}''. Considering all the parallels the two movies have, it was probably a deliberate ShoutOut.
* ShoutOut:
** A large number of them in the first film. To give but one example, Sam Loomis was the name of a character in ''Film/{{Psycho}}''.
** By coincidence (or perhaps not), Jamie Lee Curtis is [[Film/{{Psycho}} Marion Crane's daughter]]. In fact, Janet Leigh has a cameo in the seventh film playing a character named "Norma".
* WhatCouldHaveBeen:
** The plan for ''Season of the Witch'' was to turn ''Halloween'' into a GenreAnthology film series, as Carpenter and Debra Hill felt that the story laid out in the first two films was finished.
** There was also plans for, get this, an Anime based on the series. [[http://web.archive.org/web/20051126040826/http://www.fangoria.com/news_article.php?id=1464 Outside of a short announcement]] however, nothing came of it.
** There was also talk of a planed crossover with the ''Franchise/{{Hellraiser}}'' franchise. Word has it that either Moustapha Akkad killed the idea, or it was never brought into production at all and was just a rumor.
** Had the Thorn storyline continued, then Tommy Doyle would return to replace Loomis as Michael's main enemy.