An international trailer for Disney/Pixar prequel Monsters University has surfaced on the web, according to a report by Deadline. The CG animated feature, a prequel to the 2001 hit Monsters, Inc., takes a look 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 trailer screened ahead of Wreck-It Ralph over the weekend in the UK. The domestic version will go out with Disney’s Oz The Great And Powerful when that film premieres on March 8.

The new full-length trailer fleshes out the plot that finds Mike (Billy Crystal) and Sully (John Goodman) in their college years. Watch it, below:

Crystal and Goodman lead a voice cast that includes Steve Buscemi, Ken Jeong, Kelsey Grammer, Rob Riggle and JB Smoove. Monsters University is slated for release on June 21, 2013.