Monsters, Inc.
Monsters, Inc. mistake picture

Other mistake: Near the end of the film, when the identity of 0001 of the CDA is revealed, number 0112 is shown both standing next to 0001 as Roz enters the room and behind Sully and Mike on the opposite side of the room. (01:16:45)

Other mistake: When Sulley and Mike take Boo into the Factory, they see all of the CDA agents. There are 3 talking to Mr. Waternoose(as we see seconds later). One of them is number 00002. When they are done, they escort Mr. Waternoose to somewhere else. However at that very second another agent comes in with a metal detector thing. His number is also 00002. (00:35:20 - 00:36:10)

Other mistake: In the scene where Mike and Sully walk in on the CDA overrunning the power company, there is a CDA agent with number 00112 behind the main desk, and another with the same number talking to the boss a second later. (00:35:10)

Phoenix

Monsters, Inc. mistake picture

Other mistake: In the scaring simulation room, the alphabet wallpaper border at the top of the wall has the "J" written backwards.

osuraccon

Upvote valid corrections to help move entries into the corrections section.

Suggested correction: The walls of the room also have nonsensical drawings like a giraffe with two heads. The implication is that the monsters designing the room didn't entirely know what kids would actually have in rooms (like they didn't know that giraffes don't actually have two heads). So they thought that humans have the J backwards.

Whether or not the backwards J was intentional or as a joke, it would still seem unreasonable for the monsters to get it wrong when you see they got the pictures for each letter seen correct "jaguar", "kangaroo "pig", "quail", "rhino." I would at the very least call it a character mistake.

Bishop73

As the original correction said, it's just an example of the monsters not understanding the human world. Not a mistake.

Yet they know the alphabet? I doubt it.

lionhead

Other mistake: In the door vault scene, Boo's laughter causes all the red lights on the doors to generate and fully power. Unlike the other two scenes - back at the apartment and the trash compactor - this resulted in a blackout. (01:09:09)

Trainman14

Upvote valid corrections to help move entries into the corrections section.

Suggested correction: In the house and at the compactor, it caused an overload. This resulted in a blackout. The doors seem to work differently.

lionhead

Other mistake: The scare leaderboard shows scarers by their surnames, except Randall, who is shown by his first name only.

Deliberate mistake: When Boo laughs repeatedly while playing hide-n-seek with Sully in the men's room, nothing happens to the electricity - no surges as with all other times she laughs. [In the audio commentary by the directors, they explained that it would've been distracting if an energy surge occurred every time Boo laughed, so they simply didn't address the issue. A reasonable course of action, but still a mistake.] (00:37:30)

More mistakes in Monsters, Inc.

Mike: I'm telling you, Big Daddy. You're gonna be seeing this face on TV more often.
Sulley: Yeah, like on "Monstropolis' Most Wanted"?
Mike: Ha, ha, ha. You've been jealous of my good looks since the fourth grade, pal.

More quotes from Monsters, Inc.

Trivia: Mike and Celia have dinner at Harryhausen's. This is a tip of the hat to Ray Harryhausen, the great stop-motion animator.

More trivia for Monsters, Inc.

Question: After Monsters, Inc. has switched over to "laugh power", the scare floor has a very different look. There's a board in the back with "JOKE OF THE DAY" written on it. Can anyone see the text of the joke?

Answer: The Doctor says to the patient, "What seems to be the problem?" The patient lifts his arm and says "It hurts when I do this." The Doctor says "don't do that."

More questions & answers from Monsters, Inc.

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