First revealed at this year’s D23 under the tentative title “The Untitled Pixar Movie That Takes You Inside the Mind,” we finally have new information to share. The new Pixar project is being developed by “Up” director Pete Doctor. In a recent interview, John Lasseter had this to say about the new film:

Pete Docter, from Monsters, Inc. and Up, is doing a new film that takes place inside of a girl’s mind and it is about her emotions as characters, and that is unlike anything you’ve ever seen.

I’m not sure what to make of this new development, but it appears as if Pixar plans to convert feelings into characters. The untitled film is not scheduled to hit theatres until May 30, 2014. Meanwhile, here’s the official teaser synopsis for the movie:

Pixar takes audiences on incredible journeys into extraordinary worlds: from the darkest depths of the ocean to the top of the tepui mountains in South America; from the fictional metropolis of Monstropolis to a futuristic fantasy of outer space. From director Pete Docter (“Up,” “Monsters, Inc.”) and producer Jonas Rivera (“Up”), the inventive new film will take you to a place that everyone knows, but no one has ever seen: the world inside the human mind.