Disney•Pixar has teamed up with Disney.comiTunes Movie TrailersYahoo! Movies and The Huffington Post to unveil these four teaser trailers for ‘Monsters University,’ the upcoming ‘Monsters, Inc.’ prequel. Scheduled for release June 21th, 2013 in the US and July 12th, 2013 in the UK, ‘Monsters University’ looks at the relationship between Mike and Sulley during their days at the University of Fear – when they weren’t necessarily the best of friends. The voice cast features Billy Crystal, John Goodman, Steve Buscemi, Dave Foley, Julia Sweeney, Joel Murray, and  Peter Sohn. Check out all four versions of the teaser trailer in the players below and vote for your favorite at the film’s official Facebook page.

Mike Wazowski and James P. Sullivan are an inseparable pair, but that wasn’t always the case. From the moment these two mismatched monsters met they couldn’t stand each other. “Monsters University” unlocks the door to how Mike and Sulley overcame their differences and became the best of friends. Screaming with laughter and fun, “Monsters University” is directed by Dan Scanlon (“Cars,” “Mater and the Ghostlight,” “Tracy”) and produced by Kori Rae (“Up,” “The Incredibles,” “Monsters, Inc.”). The film opens in U.S. theaters on June 21, 2013, and will be shown in Disney Digital 3D™ in select theaters.