A young monster named Michael "Mike" Wazowski dreams of being a scarer (a monster who enters the human world at night to scare children so their screams can be harvested for energy) when he grows up, after visiting Monsters Inc.—Monstropolis' most profitable and best-known scaring company—on a school field trip. Eleven years later, Mike is a first-year scare major at Monsters University, where he meets his new roommate, Randall "Randy" Boggs, and a large, blue, furry monster named James P. "Sulley" Sullivan.
Mike studies hard, while the privileged Sulley—who comes from a talented family of scarers—relies on his natural scaring ability and begins to falter. As the semester progresses, Mike and Sulley attempt to join a fraternity as pledges, but only Sulley gets into Roar Omega Roar. At the final exam for Scaring 101, Mike and Sulley's rivalry makes Dean Abigail Hardscrabble fail them both and drop them from the program, prompting Roar Omega Roar to remove Sulley from their team. Mike decides to prove himself by entering the Scare Games, but Oozma Kappa—the only fraternity that was removed from the program—is denied entry as they are one team member short. Seeing the competition as his ticket back into the scare program, Sulley joins and Mike reluctantly accepts.
Oozma Kappa fails the first challenge, an obstacle course where the contestants dodge harmful, glowing "urchins," but miraculously advances when another team is disqualified for using protection gel, which violates the Scare Games' rules. Oozma Kappa places second in the second challenge, where the contestants have to avoid disturbing the librarian from her reading. The contestants attend Roar Omega Roar's party where the other competitors humiliate and discourage Oozma Kappa. Mike arranges a secret visit to Monsters, Inc. to lift their spirits, but Sulley still doubts that Mike can be a true scarer. In the final round, they pull off a close victory cemented by a final decisive scare by Mike in the simulation bedroom. Afterwards, Mike discovers that Sulley cheated to improve Mike's score. Determined to prove he is capable of becoming a scarer, Mike breaks into the school's door lab and enters a door to the human world, but the door leads to a summer camp and he is unable to scare a cabin full of children.
The above taken from Wikipedia.
It's not as slapstick as the first one. A little more down to earth with revealing moments of humanity in those monsters. It's nice to see how Mike and Sulley became best buds. A simple movie for the family.
Directed by: Dan Scanlon
Starring: Billy Crystal, John Goodman, Steve Buscemi