Pixar could have another great movie on their hands with Inside Out, a movie about what goes on behind the scenes in our brain and how we're controlled by certain creatures. haha! Anyways, this sounds like a really fun idea for a film and I am excited to see it. I'm a big fan of Pixar and they haven't done too many bad movies.
Anyways, a new trailer has been released, check it out here: https://www.youtube.com/watch?v=-kArxASiw3Y