According to Variety, Twentieth Century Fox Animation has set Jimmy Hayward and Steve Martino to direct its CGI-animated adaptation of the Dr. Seuss classic Horton Hears a Who.

Fox has slotted the film for a spring 2008 release. Pic is being produced by Blue Sky, makers of Ice Age and Robots.

The script has been written by Ken Daurio and Cinco Paul, and storyboarding has just begun under the supervision of Fox Animation president Chris Meledandri and Blue Sky's Chris Wedge, both of whom are producing.

Exec producing will be Audrey Geisel, Theodor Geisel's widow, who sold Fox both Horton and an option for a sequel based on Horton Hatches an Egg.