Tribeca: Brad Bird Shows 'Tomorrowland' Clip, Defends Tom Cruise As Janeane Garofalo Jokes About Scientology

The filmmaker behind 'Ratatouille,' 'The Incredibles,' 'Mission: Impossible -- Ghost Protocol' and this summer's George Clooney-starring sci-fi movie also talked about the challenges and rewards of making big-budget live-action films.