award-winning films, pixar has not only tugged at our heartstrings, but changed the way we look at our world. >> and pixar is set to do it again. juju chang sat down with the director and cast to give us a sneak peek. >> reporter: behold the inside of an 11-year-old girl's brain. >> what was that? i thought you said we were going to act casual. >> reporter: "inside out" stars a preteen girl's mixed emotions. >> i'm joy. this is sadness. >> reporter: that familiar chirp belongs to amy poehler. >> joy? >> yes, joy? >> you'll be in charge of the console, keeping riley happy all day long. and may i add i love your dress? it's adorable. >> oh, this old thing? thank you so much! >> mindy kaling placed disgust. >> when i'm through, riley will look so good the other kids will look at their own outfits and barf. >> reporter: together they run riley's brain from a control center, a complex world created by director and writer pete docter. what was the inspiration? >> the whole thing started watching my daughter. because she turned 11. she went from being happy, kind of crazy kid to being much more quiet and shy and reclusive.