Dr. Seuss’ Horton Hears a Who! DR. SEUSS’ HORTON HEARS A WHO! (2008) Featuring the voices of Jim Carrey, Steve Carell, Carol Burnett, Will Arnett, Seth Rogen, Dan Fogler, Isla Fisher, Jonah Hill, Amy Poehler, Jamie Pressly and Charles Osgood. Screenplay by Ken Daurio and Cinco Paul. Directed by Jimmy Hayward and Steve Martino. Distributed by 20th Century Fox.  88 minutes.  Rated G. Hollywood hasn’t been very nice to the memory of Theodor S. Geisel, a/k/a legendary children’s