Horton Hears a Who! is a 2008 American computer-animated adventure comedy film based on the Dr. Seuss' book of the same name. The film was directed by Jimmy Hayward and Steve Martino, and was produced by Blue Sky Studios. It features the voices of Jim Carrey and Steve Carell. Released on March 14, 2008 by 20th Century Fox, it received generally positive reviews, and grossed $297 million on a budget of $85 million. The film is the third Dr. Seuss feature film adaptation, the second Dr. Seuss film starring Jim Carrey after How the Grinch Stole Christmas (2000), and the first adaptation of a Dr. Seuss work fully animated using CGI technology. It is also Carrey and Carrell's second collaboration after Bruce Almighty (2003).


Number Titles Release
1 Main Titles/Rolling March 14, 2008
2 In The Cool of The Pool March 14, 2008
3 Class in Session March 14, 2008
4 A Yelp For Help March 14, 2008
5 Community Syandards March 14, 2008
6 Who Ville March 14, 2008
7 96 Daughters March 14, 2008
8 Family Tradition March 14, 2008
9 Keep It To Yourself March 14, 2008
10 Good News Only March 14, 2008
11 Cones Convergence March 14, 2008
12 Brainset Brain March 14, 2008
13 The Perefct Place March 14, 2008
14 Horton The Brave March 14, 2008
15 Making Trouble March 14, 2008
16 Lighter Than A Feather March 14, 2008
17 Weird Feeling March 14, 2008
18 Being Alone March 14, 2008
19 Evil Plans March 14, 2008
20 Summer Snow March 14, 2008
21 Code Of Honor March 14, 2008
22 Vlad Attacks March 14, 2008
23 Waring Who-Ville March 14, 2008
24 The Clover Field March 14, 2008
25 Finding The Speck March 14, 2008
26 Under Attack March 14, 2008
27 Admit You're Wrong March 14, 2008
28 Are Here? March 14, 2008
29 One Hore Voice March 14, 2008
30 Hearing The Whos March 14, 2008
31 No Matter Now Snale March 14, 2008
32 End Titles March 14, 2008


Spoiler warning: The following contains plot details about
the entire movie.

A dust speck is dislodged from its obscure place and sent adrift through the Jungle of Nool. At the same time, Horton the elephant (Jim Carrey), the jungle's eccentric nature teacher, takes a dip in the pool. The dust speck floats past him in the air, and he hears a tiny yelp coming from it. Believing that an entire society of microscopic creatures are living on that speck, he places it atop a clover. Horton finds out the speck harbors the city of Whoville and its inhabitants, the Whos, led by Mayor Ned McDodd (Steve Carell). He has a wife, Sally (Amy Poehler), 96 daughters (whose names all begin with the letter H), and one teenage son named JoJo (Jesse McCartney). Despite being the oldest and next in line for the mayoral position, JoJo doesn't want to be mayor, and because he's so scared of disappointing his father, never speaks. Once Horton begins carrying the speck with him, the city starts experiencing strange phenomena (earthquakes and changes in the weather), and the Mayor finds his attempts to caution Whoville challenged by the Town Council, led by the opportunistic yet condescending Chairman (Dan Fogler).

The Mayor finds out from Dr. LaRue (Isla Fisher) that Whoville will be destroyed if Horton does not find a "safer, more stable home." Horton resolves to place the speck atop Mt. Nool, the safest place in the jungle. The head of the jungle, the Sour Kangaroo (Carol Burnett), disbelieving Horton's beliefs, and resenting him for overshadowing her authority attempts several times to demand that Horton give up the speck, but Horton ignores her demands. Also taking force toward Horton are the Wickersham Brothers, a group of monkeys who love making misery. Eventually, the Sour Kangaroo, upon learning Horton's ignorance, enlists a vulture named Vlad Vladikoff (Will Arnett) to get rid of the speck by force.

Vlad manages to steal the clover away from Horton and drops it into a massive field of identical pink clovers, causing an apocalyptic tremor in Whoville. After unsuccessfully picking nearly 3,000,000 clovers, Horton eventually recovers the clover (exactly the 3,000,000th clover). The Sour Kangaroo eventually finds out that Horton still has the speck, and decides to rally the jungle community into fighting Horton, saying that Horton's goal will lead to anarchy. Upon cornering him, the Sour Kangaroo offers Horton an escape from punishment by renouncing Whoville's existence. When Horton refuses, in spite of his heartfelt speech, she orders the animals to rope and cage him, and to have the speck and the Whos destroyed in a pot of boiling beezlenut oil. The Mayor enlists all of his people to make noise by shouting "We are here!", as well as playing a variety of instruments, so the animals may hear them, assisted by Jojo's "Symphonophone", an invention which creates a huge musical contribution, but still fails to penetrate the surface of the speck. As Horton lies beaten and captured, the Sour Kangaroo easily takes the clover, and releases it. Meanwhile, JoJo grabs the horn used to project Horton's voice, runs up the highest tower and yells "YOPP!", breaking through the sound barrier just seconds before the speck hits the oil.

The Sour Kangaroo's son, Rudy (Josh Flitter) grabs the clover and returns it to Horton. The animals finally hear the Who's and realize the truth and isolate the Sour Kangaroo for tricking them. While being praised for his integrity by his neighbors, Horton even forgives the devastated Sour Kangaroo, and she befriends him with a makeshift umbrella for Whoville. Here, the people of Whoville and the animals of Nool gather in song and recite the chorus from "Can't Fight This Feeling". The film ends with the narrator revealing that the Jungle of Nool, or rather Earth, is just one speck, like Whoville, among numerous others, floating in outer space.

Voice castEdit

  • Jim Carrey as Horton, an outgoing, big-hearted, loving, sweet, and thoughtful elephant. Horton has no tusks, lives by himself and possesses acute hearing abilities.
  • Steve Carell as Mayor Ned McDodd, the mayor of Whoville. He has 96 daughters, 1 son named JoJo and his wife Sally.
  • Carol Burnett as The Sour Kangaroo, The film's main antagonist, she thinks that Horton is a fool for thinking that there is life on a speck of dust.
  • Will Arnett as Vlad Vladikoff, a vulture hired by the Sour Kangaroo to steal Horton's clover.
  • Seth Rogen as Morton the mouse, Horton's best friend in the Jungle of Nool
  • Amy Poehler as Sally O'Malley, Ned's wife and mother to Jojo and 96 daughters
  • Dan Fogler as the Councilman and Yummo Wickersham
  • Jesse McCartney as JoJo, Ned's son
  • Isla Fisher as Doctor Mary Lou LaRue, a teacher at Who U.
  • Laura Ortiz as Jessica
  • Jonah Hill as Tommy
  • Jaime Pressly as Mrs. Quilligan, Jessica's mother
  • Niecy Nash as Miss Yelp
  • Selena Gomez as Helga, one of the mayor's daughters
  • Josh Flitter as Rudy Kangaroo
  • Joey King as Katie, a cute little baby yak
  • Bill Farmer as Willie Bear, additional voices
  • Charles Osgood as The Narrator
  • Bloom Loom as Who Woman/Joan