Before Mike and Sulley started working at Monsters Inc., they had to go to college. What is their Alma Matter? Monster University of course and that is the premise of this much-anticipated prequel. It was in college when Mike and Sulley met for the first time, and they were not necessarily the best of friends. Billy Crystal and John Goodman return to play their roles. The film also stars Steve Buscemi, Helen Mirren, Alfred Molina, Dave Foley, Sean P. Hayes, Joel Murray, Peter Sohn, Charlie Day, Nathan Fillion, Bobby Moynihan, Julia Sweeney, Aubrey Plaza, Tyler Labine, John Krasinski, Bonnie Hunt, Beth Behrs and John Ratzenberger.