When Horton the Elephant (Jim Carrey) discovers that a tiny speck of dust that he found on a flower is actually home to the miniscule citizens of Whoville, he agrees to help protect the Whos from the dangers of the regular-sized Jungle of Nool. Teaming up with Ned O'Malley (Steve Carell), the Mayor of Whoville, who has 96 daughters and one quiet son (Jesse McCartney), Horton sets out to find the Whos a safe resting place for their little world. But, when Horton's neighbors catch wind of the story, Sour Kangaroo (Carol Burnett) and her evil eagle partner, Vlad Vladikoff (Will Arnett), will stop at nothing to destroy the speck. Directed by Jimmy Hayward and Steve Martino. With Seth Rogen, Isla Fisher, Jonah Hill and Amy Poehler. Categories: Animation, Adventure, Comedy, Family. Year: 2008.

Jesse McCartney in Horton Hears a Who!
After the tree they live in is cut down, three singing chipmunk brothers, Alvin (Justin Long), Simon (Matthew Gray Gubler) and Theodore (Jesse McCartney) find themselves in Los Angeles, where they are adopted by struggling songwriter Dave Seville (Jason Lee). Impressed with the little guys' talent and seeing the opportunity for long-awaited success, Dave sets out to make the chipmunks a musical sensation. But, to achieve their dream and remain a family, Dave and the boys will have to overcome a meddling record executive (David Cross). Directed by Tim Hill. With Cameron Richardson. Categories: Comedy, Family, Fantasy, Based on a Cartoon. Year: 2007.

Jesse McCartney in Alvin and the Chipmunks