Monsters, Inc.
Monsters, Inc. mistake picture

Continuity mistake: At the beginning of the film, we see Sully asleep in his bed and the alarm clock/radio on a bedside cabinet to the right. Later, when Boo climbs into Sully's bed, the clock/radio isn't there anymore. (00:04:50 - 00:32:30)

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

Suggested correction: Sully may have unplugged the alarm clock and put it somewhere else, especially when there's a "dangerous" child in his home, and he wouldn't want his things to get contaminated.

This correction is a stretch. If he doesn't want his things contaminated, why not remove the pictures and lamps? Why let her sleep in his bed with his blankets?

Bishop73

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

Continuity mistake: When Mike, Sulley and Boo are walking to the Scare Floor after leaving the locker room, Mike's feet and legs are soaking wet. His feet are suddenly dry by the time they reach the Scare Floor. (00:38:45)

Casual Person

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

Suggested correction: You can see the wet footprints gradually becoming less wet as he walks, until they leave no water footprints.

Yes the soles of his feet were dry, not the entire foot though.

Ssiscool

Trivia: The number "A113" has appeared in every Pixar film. In this film, it appears as a sign seen in the background when Sulley sees Smitty and Needleman loading the trash compactor.

moviedude345

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

Suggested correction: No, the sign has the number "431" on it. There are several instances in the film where A113 is speculated to be hidden, but none have actually been confirmed. There is also a video on Pixar's YouTube channel which points out all the A113 references in their films, but Monsters, Inc has been left out: https://www.youtube.com/watch?v=NyrrZqPI42I. So, it seems like this is the only Pixar film to not have an A113 reference, or it does but it hasn't been found yet. (I believe it's the former.)

zenee

Audio problem: When Mike and Sulley walk through Monstropolis, Mike goes to his car. An automatic unlocking sound from the car, but the keys Mike is shown holding appear to be the keys one would use to manually unlock the door. (00:07:20)

Casual Person

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

Suggested correction: Monstropolis is shown to have many things that operate differently from the real world. It isn't such a stretch to consider that car keys work differently as well.

Continuity mistake: There is a purple chair and a green chair in Mike and Sulley's apartment. The green chair disappears when they are at the apartment with Boo later. (00:05:45 - 00:27:50)

Casual Person

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

Suggested correction: Didn't they use the chairs fabric to make Boo's disguise? The chair would have been ruined.

They only used Sulley's chair to make a costume for Boo. Mike has his own chair but we are never shown as to where he keeps the chair. He may have put the chair somewhere else in the apartment so Boo wouldn't her germs all over it.

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

Audio problem: Jerry counts down from seven. When he has to say one his mouth opens, but he doesn't actually say one. (00:14:38)

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

Suggested correction: Many times when counting down, three-two-one is silent.

MovieFan612

Especially when filming something like this, so the numbers aren't accidentally recorded.

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)

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.
Monsters, Inc. trivia picture

Trivia: Boo's real name is Mary, the same as the young girl, Mary Gibbs, who voices Boo. This is only just visible on one of the drawings Boo makes in Mike and Sulley's apartment.

Kara

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.

Join the mailing list

Separate from membership, this is to get updates about mistakes in recent releases. Addresses are not passed on to any third party, and are used solely for direct communication from this site. You can unsubscribe at any time.

Check out the mistake & trivia books, on Kindle and in paperback.