what is this movie about?
he film centers on two monsters — Sulley Sullivan and his one-eyed partner and Mike Wazowski – employed at the titular energy-producing factory "Monsters, Inc", which generates power by scaring human children.
Monsters, Inc.
 The film centers on two monsters — James P. "Sulley" Sullivan and his one-eyed partner and best friend Mike Wazowski – 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 one sneaks into the factory, Sulley and Mike must return her home before it’s too late.

who voices mike and sulley in monsters inc Billy Crystal and John Goodman.
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Monsters, Inc. [SEP] Introduction
The film won the Academy Award for Best Original Song for "If I Didn't Have You" and was nominated for the first Best Animated Feature, but lost to DreamWorks' "Shrek", and was also nominated for Best Original Score and Best Sound Editing. "Monsters, Inc." saw a 3D re-release in theaters on December 19, 2012. A prequel titled "Monsters University", which was directed by Dan Scanlon, was released on June 21, 2013. A web-series titled "Monsters at Work" will release on Disney+ in early 2021.