Monsters, Inc. is a 2001 American animated comedy film produced by Pixar Animation Studios for Walt Disney Pictures. Featuring the voices of John Goodman, Billy Crystal, Steve Buscemi, James Coburn, Mary Gibbs, and Jennifer Tilly, the film was directed by Pete Docter, co-directed by Lee Unkrich and David Silverman, and produced by Darla K. Anderson, from a screenplay by Andrew Stanton and Daniel Gerson. The film centers on two monsters, the hairy James P. "Sulley" Sullivan (Goodman) and his one-eyed partner and best friend Mike Wazowski (Crystal), who are employed at the titular energy-producing factory Monsters, Inc., which generates power by scaring human children. However, the monster world believes that the children are toxic, and when a little human girl, Boo (Gibbs), sneaks into the factory, she must be returned home before it is too late.

Pixar Animation Studios is an American animation studio based in Emeryville, California, known for its critically and commercially successful computer-animated feature films. Since 2006, Pixar has been a subsidiary of Walt Disney Studios, a division of Disney Entertainment, a segment of the Walt Disney Company.