My favorite movie.

Monsters, Inc.

Monsters, Inc. is a 2001 American computer-animated film and the fourth feature-length film produced by Pixar Animation Studios. It was directed by Pete Docter, co-directed by Lee Unkrich and David Silverman, and written by Jill Culton, Peter Docter, Ralph Eggleston, Dan Gerson, Jeff Pidgeon, Rhett Reese, Jonathan Roberts, and Andrew Stanton. The starring voices are John Goodman and Billy Crystal as Sulley and Mike, two monsters who work at a power plant that powers the monster world with children's screams, Mary Gibbs as Boo, a little girl who enters the monster world, Steve Buscemi as Randall, a rival monster, and James Coburn as Mr Waternoose, the plant's owner.

The film was released to theatres by Walt Disney Pictures in the United States on November 2, 2001, in Australia on December 26, 2001, and in the United Kingdom on February 8, 2002. It was a commercial and critical success, grossing over $525,366,597 worldwide.^[1 Review aggregator Rotten Tomatoes also reported extremely positive reviews with a 95% approval rating.

Plot

Monstropolis is a city populated entirely by monsters. The world can be connected to children's bedrooms in the human world through closet doors. When a door is properly activated, it becomes a portal between the monster world and the human world. The city's power supply is provided by Monsters, Inc., a power plant that employs monsters to scare children and extract energy from their screams. The company has a large warehouse full of doors, work areas called "scare floors" where the doors are activated, and a special training room in which employees practice their scare skills. The company's best scarer is James P. "Sulley" Sullivan (Goodman), whose assistant is his best friend and room mate Michael "Mike" Wazowski (Crystal). Sulley's main rival is Randall Boggs (Buscemi), but enjoys a patronizing relationship with the company's CEO, Henry J. Waternoose III (Coburn), who likes Sulley because of his scaring ability. Waternooses also worried about an energy crisis because children are harder to scare than they used to be.

One day, Sulley finds an activated door on his scare floor after the workday has ended. He finds no one in the room behind the door, but a little two-year-old girl (Gibbs) follows him back into the monster world. Far from being scared, she calls him "Kitty" and delights in playing with him. Since monsters think humans are lethally toxic, Sulley tries repeatedly to return the girl to her room, but she keeps following him back, and Randall eventually deactivates and stores the door, leaving the girl stuck in the monster world. The girl's presence becomes public knowledge after Sulley sneaks her into a restaurant to find Mike, so they hide her in their home while the Child Detection Agency (CDA) searches for her. Sulley decides to call the girl "Boo", and he slowly bonds with her after realizing that she is not poisonous. He also discovers that her laughter produces even more energy than her screams.

The next morning, Sulley and Mike disguise Boo in a monster costume and sneak her into work. Randall agrees to help them return her to her bedroom, but when Mike enters the room, Randall captures him in a box, believing he is Boo. Randall intends to kidnap Boo and subject her to a device that extracts her screams.

What follows is a sequence of battles, chases, and accidents in which Sulley and Mike attempt to protect Boo from Randall and his scream machine. Waternoose reveals that he is in cahoots with Randall and exiles Sulley and Mike to the Himalayas, where they meet the Abominable Snowman (John Ratzenberger). Sulley and Mike return to the monster world through a village at the foot of the mountain, where Randall chases them through the company's roller-coaster-like door-moving system. When the energy in Boo's laughter activates the doors in storage, the chase passes in and out of the human world. Finally, Sulley and Boo defeat Randall. Sulley throws Randall through the door of a trailer-park trailer, where a woman beats Randall with a shovel, and Mike destroys the door to make sure Randall never comes back.

Just as Sulley and Mike attempt to return Boo to her home, Waternoose and the CDA call her door to the scare floor, ready to arrest them, but Mike leads the agents away by fleeing with Boo's monster costume, and Sulley flees with Boo and the door. When Waternoose follows Sulley and Boo, Sulley attempts to set up and activate the door, and when Waternoose follows them through the door, he tells.

Some time later, Sulley becomes the CEO of Monsters, Inc., and the company has ended the energy crisis with his policy of making children laugh instead of scaring them. Meanwhile, Mike has collected and reassembled the pieces of Boo's shredded door. When Sulley puts his piece in its place, the door is activated again, and when he peeks into Boo's room, she greets him.