History Trivia / MonstersInc

** [[https://www.youtube.com/watch?v=Tz_JLiILIXw As shown by this clip]], Mike wasn't originally going to have arms, and Sulley originally had tentacles instead of feet.

* UnintentionalPeriodPiece: Of the late '90s/early 2000s, especially Mike and Sulley's apartment.

** Due to Pixar not renewing its seven-film distribution deal with Disney in 2004 that would also give the latter full rights to its properties and sequel production, a sequel called ''Monsters, Inc. 2: Lost in Scaradise'' was intended to be produced by a newly established studio called Circle 7 Animation, along with ''Script/ToyStory3'' and a sequel to ''WesternAnimation/FindingNemo''. [[https://lostmediawiki.com/Disney_Circle_7_Animation_(partially_lost_production_material_of_cancelled_direct-to-video_sequels;_2004-2006) The plot]] would have involved Mike and Sulley visiting Boo's room to celebrate her birthday, only to find an old woman living where her room used to be. The two would then decide to explore the human world in search of her, only to get lost. With the deal falling through in January 2006, and then-CEO Michael Eisner, who Pixar seriously disdained, getting ousted and being succeeded by Bob Iger, Disney would purchase Pixar and give creative control back to them, with the sequel being scrapped in favor of ''WesternAnimation/MonstersUniversity''. Circle 7 would be shut down two months later, with most of the animators going to either the feature animation department or [=DisneyToon=] Studios.

* PreviewPiggybacking: Those lines around the block of the theaters when this movie was first released? Those were obsessive ''Franchise/StarWars'' fans trying to see the teaser for ''Film/AttackOfTheClones'', many of whom left after seeing it.

* NonSingingVoice: In the German version of ''I Wouldn't Have Nothing If I Didn't Have You'', Sulley's singing voice is provided by Thomas Amper, who also voiced George Sanderson.

* DoingItForTheArt: The extensive work on the hair simulation for Sully is staggering, and the efforts clearly paid off.

** Creator/BillMurray read for the role of Sully before Creator/JohnGoodman was cast. However, Creator/PeteDocter couldn't get back in touch with Murray after his screen-test, which he took as a "no".

** Early drafts had Mike as Randall's scaring assistant and Sully as a non-Scarer factory worker.

** Another involved a Sully-prototype protagonist named Johnson teaming up with a human child named Mary and becoming Scarers together. The climax would have involved a FriendOrIdolDecision, with Johnson wondering if keeping Mary's fixed door a secret was worth it to become Top Scarer.

** Sully's original concept art made him look [[https://jpbannisterrandd.files.wordpress.com/2013/11/sulleyconceptart.png a lot weirder]]. [[https://jpbannisterrandd.files.wordpress.com/2013/11/sulleyconceptart2.png Later art]] was closer to his current design.
** Sully's introduction after Waternoose mentions him in the opening scene was originally going to be him roaring at the camera and then seguing directly into the workout scene.
** The scene at Harryhausen's originally had Mike trying to propose to Celia, which would have driven a wedge between him and Sully. However, it was quickly decided that Boo was enough of a source of conflict.

** Creator/BillMurray was considered and tested for the role of Sulley, but Pete Docter said that when the filmmakers decided to offer it to Murray, they were unable to make contact with him and took that to mean "no". Murray later said that if they ''had'' been able to contact him, he would've said yes.
** Creator/JackBlack, Creator/DrewCarey, Creator/NathanLane, Creator/JohnLeguizamo, Creator/EddieMurphy, Creator/ChrisRock, Creator/DavidSchwimmer, Creator/BillyWest and Creator/RobinWilliams all originally auditioned for the role of Mike Wazowski.
** Creator/ChrisBarrie, Creator/JimCarrey, Creator/VincentDOnofrio and Creator/JeffGoldblum were considered for Randall.
** Creator/PatrickStewart was considered for Waternoose.

** [[https://www.youtube.com/watch?v=nEjup1X1X7M Cutscenes of Sulley]] [[https://www.youtube.com/watch?v=8qBoJs9dsoA being decontaminated by the CDA]] are present in the game files and were intended to play if Sulley got caught by one (in the game itself, Sulley merely dies and respawns).

!Trivia for the Game

** The scene at Haryahusen's originally had Mike trying to propose to Celia, which would have driven a wedge between him and Sully. However, it was quickly decided that Boo was enough of a source of conflict.

* DistancedFromCurrentEvents: Harryhausen was originally blown up instead of put under a force-field, but it was changed after early releases due to 9/11. The original scene can be found on the Blu-Ray features.

* TooSoon: Harryhausen was originally blown up instead of put under a force-field, but it was changed after early releases due to 9/11. The original scene can be found on the Blu-Ray features.

* TooSoon: One of several films in production when the September 11th attacks occurred, this resulted in the "decontamination" of Harryhausen's being changed from a mushroom explosion to a pulsating plasma dome.

** Creator/VincentDOnofrio and Creator/JeffGoldblum were considered for Randall.

** Harryhausen was originally blown up instead of put under a force-field, but it was changed after early releases due to 9/11. The original scene can be found on the Blu-Ray features.

* ThrowItIn: All of Boo's lines. It was too hard to get Mary Gibbs to sit still and record lines, so the team set her loose and followed her around the studios, recording her lines. You can actually tell that she must have been in the ''Franchise/WinnieThePooh'' department, because one of her lines sounds like "I'm Tigger!".

* UrbanLegends: There's been a hoax going around associated with the movie. It involves a screenshot of a scene showing that Boo drew a drawing of her mother and "Uncle Roger" having sex. The picture is photoshopped. Despite this, people still claim it's a real case of GettingCrapPastTheRadar or that it was on the first edition before later being censored.

** Creator/JohnGoodman and Creator/BillyCrystal recorded their lines together for a more intimate performance ([[HoYay not like that]]), which also resulted in a lot of improvising.

* ThrowItIn: All of Boo's lines. It was too hard to get Mary Gibbs to sit still and record lines, so the team set her loose and followed her around the studios, recording her lines. You can actually tell that she must have been in the ''Franchise/WinnieThePooh'' department, because listen and some of her lines include "Tigger" and "Kitty".

** Creator/BillMurray was considered and tested for the role of Sulley, but Pete Docter, said that when the filmmakers decided to offer it to Murray, they were unable to make contact with him and took that to mean "no".

** Alicia Vélez (Boo's Latin American VA) is the daughter of Roz's Latin American VA Creator/HumbertoVelez.
** Storyboard artist Rob Gibbs's real-life daughter, Mary, voices Boo.

** Creator/JohnGoodman and Creator/BillyCrystal recorded their lines together for a more intimate performance ([[HoYay not like that]]), which also resulted in a lot of improving.

* UrbanLegendOfZelda: There's been a hoax going around associated with the movie. It involves a screenshot of a scene showing that Boo drew a drawing of her mother and "Uncle Roger" having sex. The picture is photoshopped. Despite this, people still claim it's a real case of GettingCrapPastTheRadar or that it was on the first edition before later being censored.

* CreatorCameo: Director Pete Docter voices the CDA agents who announces that Harryhausen's is ready for decontamination as part of an 835 call.

** John Goodman and Billy Crystal recorded their lines together for a more intimate performance ([[HoYay not like that]]), which also resulted in a lot of improving.
** Frank Oz and Steve Buscemi also recorded their lines together for the bathroom scene where they discuss Randall's plot.