<P> Horton Hears a Who ! ( also known as Dr. Seuss ' Horton Hears a Who ! ) is a 2008 American computer animated adventure comedy film based on the book of the same name by Dr. Seuss , produced by Blue Sky Studios and distributed by 20th Century Fox . Directed by Jimmy Hayward and Steve Martino in in their directorial debuts , the film 's screenplay was written by Cinco Paul and Ken Daurio , and features the voices of Jim Carrey and Steve Carell as Horton the Elephant and the Mayor of Whoville , respectively , alongside Will Arnett , Seth Rogen , Isla Fisher , and Amy Poehler . John Powell composed the film 's music . </P>
<P> Horton Hears a Who ! ( also known as Dr. Seuss ' Horton Hears a Who ! ) is a 2008 American computer animated adventure comedy film based on the book of the same name by Dr. Seuss , produced by Blue Sky Studios and distributed by 20th Century Fox . Directed by Jimmy Hayward and Steve Martino in in their directorial debuts , the film 's screenplay was written by Cinco Paul and Ken Daurio , and features the voices of Jim Carrey and Steve Carell as Horton the Elephant and the Mayor of Whoville , respectively , alongside Will Arnett , Seth Rogen , Isla Fisher , and Amy Poehler . John Powell composed the film 's music . </P>
who does the voice of horton in horton hears a who
who does the voice of horton in horton hears a who
Jim Carrey
Jim Carrey