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In order to power the city, monsters have to scare children so that they scream. However, the children are toxic to the monsters, and after a child gets through, two monsters realize things may not be what they think.


(original story by), (original story by) | 4 more credits »
952 ( 21)
Top Rated Movies #215 | Won 1 Oscar. Another 13 wins & 38 nominations. See more awards »



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Cast overview, first billed only:
Mike Wazowski (voice)
Boo (voice)
Randall Boggs (voice)
Celia (voice)
Roz (voice)
Fungus (voice)
Needleman / Smitty (voice)
Steve Susskind ...
Floor Manager (voice)
Flint (voice)
Bile (voice)
Samuel Lord Black ...
George Sanderson (voice) (as Sam Black)
Additional Voices (voice)


A city of monsters with no humans called Monstropolis centers around the city's power company, Monsters, Inc. The lovable, confident, tough, furry blue behemoth-like giant monster named James P. Sullivan (better known as Sulley) and his wisecracking best friend, short, green cyclops monster Mike Wazowski, discover what happens when the real world interacts with theirs in the form of a 2-year-old baby girl dubbed "Boo," who accidentally sneaks into the monster world with Sulley one night. And now it's up to Sulley and Mike to send Boo back in her door before anybody finds out, especially two evil villains such as Sulley's main rival as a scarer, chameleon-like Randall (a monster that Boo is very afraid of), who possesses the ability to change the color of his skin, and Mike and Sulley's boss Mr. Waternoose, the chairman and chief executive officer of Monsters, Inc. Written by Anthony Pereyra {}

Plot Summary | Plot Synopsis


You Won't Believe Your Eye. See more »


G | See all certifications »

Parents Guide:



Official Sites:




Release Date:

2 November 2001 (USA)  »

Also Known As:

Hidden City  »

Box Office


$115,000,000 (estimated)

Opening Weekend:

$62,577,067 (USA) (2 November 2001)


$289,907,418 (USA) (26 April 2013)

Company Credits

Show detailed on  »

Technical Specs


Sound Mix:

| |


Aspect Ratio:

1.85 : 1
See  »

Did You Know?


In the original draft of the script, Sulley was not to be a scarer but a worker named Johnson with brown fur. In fact, a quite long storyboard of the Sulley-as-lowly-helper is shown on the DVD. Also, Mike was the assistant of Randall (who was named Ned in the first version). In another draft, Sulley, originally called "Barrymore", was Ned/Randall's assistant. George Sanderson (the monster who keeps getting caught by the CDA for "2319" emergencies) is the monster who was supposed to be the protagonist for the original Monsters, Inc. concept - a bumbling, inept monster who couldn't scare anyone, 'til a timid girl, put upon by her brothers, teaches him how to be scary. George in the final version is even the same color and monster type in the original storyboards. See more »


In some scenes, Boo's giggles and screams do not produce any power spikes (e.g. her scream right before Sulley rescues her from Randall's scream machine and her giggles when playing hide-and-go-seek with Sulley in the bathroom). See more »


[first lines]
Flint: All right, Mr. Bile, is it?
Bile: Uh, my friends call me Phlem.
Flint: Uh-huh, Mr. Bile, can you tell me what you did wrong?
Bile: I fell down?
Flint: No, No, before that.
[Turning to the Trainees behind her]
Flint: Can anyone tell me Mr. Bile's big mistake? Anyone?
[the Trainees look confused]
Flint: [Playing the Footage on the Screen above of Bile entering the room] Alright let's check footage, right there. The Door! And leaving the door open is the worst mistake that any employee could make, because...
See more »

Crazy Credits

The closing credits features the disclaimer "No monsters were harmed during the making of this film". See more »


Featured in Count It Down: Greatest Animated Movie Characters (2013) See more »


If I Didn't Have You
Music and Lyrics by Randy Newman
Performed by Billy Crystal and John Goodman
Produced by Randy Newman, Chris Montan, and Frank Wolf
See more »

Frequently Asked Questions

See more (Spoiler Alert!) »

User Reviews

Adorable movie with top class entertainment.
21 January 2004 | by (Groningen, The Netherlands) – See all my reviews

The best way to describe this movie in one word is; fun! "Monsters, Inc." is a movie you can easily fall in love with. It has some great fun character, some awesome moments and some well placed comical moments. "Monsters, Inc." is entertainment at its bests.

The voice cast is amazing. John Goodman and Billy Crystal form a great leading duo. Steve Buscemi is a great villain and James Coburn has a great voice that fits his character perfectly. John Ratzenberger as always is very entertaining this time in a role as banished Yeti.

The story itself is pretty simple but thats what makes it easy to follow and so much fun to watch. The movie not only knows how to entertaining but also knows how and when to emote. The combination of fun and emotional things is perfectly balanced and placed within the movie.

There is some great dialog but the true power of "Monsters, Inc." are the wonderful characters. Not is there only a wild variety of strange and weird characters but also some characters that are good for some serious laughs and Boo is simply adorable and a pretty fair representation of a kid in real life. Well done Pixar!

Pure entertainment for the entire family!


44 of 53 people found this review helpful.  Was this review helpful to you?

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How old is Boo supposed to be? CancerGrly19
IN TOP 250?? are u KIDDING ME??? Rotten_Mangoes
Sexiest monster? Strakmaster
Did anyone else think this? jandm-10
Plot changes in the 3D? havin_aball
This movie is only for small kids.. isn't it...???? pargat89
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