Monsters, Inc. (2001)
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, 2 monsters realize things may not be what they think.
Directors: Pete Docter, David Silverman, Lee Unkrich
Writers: Pete Docter (original story by), Jill Culton (original story by), Jeff Pidgeon (original story by), Ralph Eggleston (original story by), Andrew Stanton (screenplay), Daniel Gerson (screenplay)