Talented people are leaving Pixar because very few people get a shot at directing a film of their own.
For all the success, however, there's very little room atop Pixar's food chain. While live-action movie studios might crank out more than a dozen movies annually, the digital animation company built by Apple's Steve Jobs barely makes a film a year -- and had no features at all in 2005 or 2002. What's more, all Pixar movies so far have been directed by an inner circle of animation all-stars: John Lasseter ("Toy Story," "A Bug's Life," "Toy Story 2" and "Cars"), Brad Bird ("The Incredibles" and "Ratatouille"), Andrew Stanton ("Finding Nemo" and summer's forthcoming "Wall-E") and Pete Docter ("Monsters, Inc." and 2009's "Up").
Brad Bird is set to direct a live-action movie about the earthquake that hit San Francisco in 1906.