One day, Horton the elephant hears a cry for help coming from a speck of dust. Even though he can't see anyone on the speck, he decides to help it. Good thing since as it turns out, the speck of dust is home to the Whos, who live in their city of Whoville. Horton agrees to help protect the Whos and their home. Unfortunately for Horton, this gives him nothing but torment from his neighbors. They refuse to believe that anything could survive on the speck. Still, Horton stands by the motto that, "After all, a person is a person, no matter how small."

MPAA rating: G.

Originally released as a motion picture in 2008.

Based upon the book by Dr. Seuss.

Special features: Audio commentary by directors Jimmy Hayward and Steve Martino; All new "Ice age" short: Surviving Sid; Sneak peek at "Ice age" 3.

Art director, Thomas Cardone ; editor, Tim Nordquist ; music, John Powell ; visual effects supervisor, Kirk Garfield.

Voices: Jim Carrey, Steve Carell, Carol Burnett, Will Arnett, Seth Rogen, Dan Fogler, Isla Fisher, Jonah Hill, Amy Poehler, Jaime Pressly, Josh Flitter, Niecy Nash, Jesse McCartney.

Narrator: Charles Osgood.

DVD, region 1; Dolby Digital 5.1 surround, Dolby Digital surround.

Optional dubbed French or dubbed Spanish dialogue; English or Spanish subtitles; closed-captioned.