The Who's Who of Comedy

Making a movie about a tiny speck of dust may seem silly, but that kind of whimsy is what Horton Hears a Who is all about. Horton, a thoughtful elephant played by Jim Carrey, makes it his mission to protect the teeny town of Whoville. The town's itty-bitty members include a busybody kangaroo played by Carol Burnett and Whoville's befuddled mayor, played by Steve Carell.

The Whos in Whoville may be tiny, but they pose a very big question: Can we believe in things we cannot see? Jim says that's the underlying question in Horton Hears a Who that gives it the depth for which Dr. Seuss is known. Jim jokes that the Whos are like the tooth fairy. "A lot of people let that go," Jim jokes. "But not me. I got rich off the tooth fairy."