Dr. Seuss' Horton Hears a Who! is a 2008 American computer-animated adventure comedy feature film based on the Dr. Seuss' book of the same name. The film was directed by Jimmy Hayward and Steve Martino, and was produced by Blue Sky Studios. It features the voices of Jim Carrey, Steve Carell, Carol Burnett, Will Arnett and Seth Rogen. Released on March 14, 2008 by 20th Century Fox, it received generally positive reviews, and grossed $297 million on a budget of $85 million. The film is the third Dr. Seuss feature film adaptation, the second Dr. Seuss film starring Jim Carrey after How the Grinch Stole Christmas, and the first adaptation of a Dr. Seuss work fully animated using CGI technology. In the Jungle of Nool, a tiny dust speck is pushed off a flower. Meanwhile, a caring,...'