Disney’s upcoming 3-D re-release of Monsters, Inc. is coming out an entire month sooner than expected, with Mike and Sulley now returning to theaters this holiday season on December 21st, ComingSoon.net┬áis reporting. This will put the film in direct competition with big tentpoles such as The Hobbit, Les Miserables, Django Unchained and Jack Reacher, although the studio may still get an audience from families during Christmas break.