Pete Docter is accustomed to working in a collaborative way with the Pixar dream trust on his films, from "Up" to "Inside Out." But as the director, he was the one on the line when a powerful emotion--fear--told him that the movie wasn't ready to hit its scheduled dates. It needed more time. Now that he's shown the film out of competition at Cannes, where it roused both audiences and critics to enthusiastic ovations, he can relax a bit.