Had everything gone to plan, the new Monsters University short Party Central would be scheduled to role out with Pixar's The Good Dinosaur. Unfortunately, that movie has been pushed back to a much, much later date and the Monsters were given a new home, hanging out at the top of Muppets Most Wanted.
On the upside, that means all right minded people will see it, in US cinemas from March 21st and UK ones from the 28th. On the downside, that means a film that was originally intended to be in 3D will now be released only in 2D.
The short's premise hinges on the dimension bending door technology of the Monster world. I don't want to spoil anything, but this film would have played very well in stereo.
Anyway. There's your poster. Now go see the film.