Horton captures imaginations and Seuss' vision

After the last two movie adaptations of a Dr. Seuss story - the forgettable How the Grinch Stole Christmas and the abominable The Cat in the Hat - it had become a legitimate concern as to whether it was possible to successfully convert one of Seuss's concise classics into a full-length film. However, Hollywood's latest attempt, Horton Hears a Who!, makes the prospect of a big screen Green Eggs and Ham much less frightening. While the movie is legitimately entertaining, and not even in a "so bad it's kind of good" way, it flags in energy whenever it strays from the concept of the original story and focuses on uninspired plot additions.For the most part, the film focuses on Dr. Seuss' original plot: Horton the elephant (The Number 23's Jim Carrey) discovers a microscopic world on a speck of dust, befriends the mayor of tiny Whoville ("The Office"'s Steve Carell) and then embarks on a journey to find a safe place to store the speck of dust.