It received mixed reviews from critics and grossed $314 million worldwide, making it the second-highest-grossing animated film of 2005 (behind Madagascar).

His father, Buck "Ace" Cluck, who was once a high school baseball star, assumes that it was just an acorn that had fallen off the tree and had hit him on the head, making Chicken Little the laughingstock of the town.

As the aliens rampage throughout Oakey Oaks, supposedly vaporizing everything in their path, Chicken Little realizes he must return Kirby to his parents to save the planet.

He told the director the script had to be revised, and during the next three months, it was rewritten into a tale of a boy trying to save his town from space aliens.

[11] During the rewriting process, Dindal, along with three credited writers and nine others, threw out twenty-five scenes to improve the character development and add more emotional resonance with the parent-child relationship.

Sweeney, Ben Stiller, Matt Damon, Leonardo DiCaprio, Shia LaBeouf, Steve Martin, Jon Heder, Matthew Broderick, Jack Black, Paul Walker, Robin Williams, Nathan Lane, Drake Bell, Josh Peck, Keanu Reeves and David Spade were all originally considered for the role.

[13] Against forty actors competing for the title role, Zach Braff auditioned where Dindal noted he "pitched his voice slightly to sound like a junior high kid.

[18] Marshall was asked to provide a voice for Kingdom of the Sun, which was re-conceived into The Emperor's New Groove and directed by Dindal, but was removed from the project for being "too New York".

Before Marshall was cast, James Earl Jones, Bill Murray, Dan Aykroyd and Willem Dafoe were previously considered for the role of Buck Cluck.

"He's got this really appealing face and eye expressions," Ryan said, adding that he was amazed by Braff's natural vocal abilities.

The result of the contentious negotiations between Disney and Pixar was viewed to depend heavily on how Chicken Little performed at the box office.

[28] On October 30, 2005, the film premiered at the El Capitan Theatre, with the cast and filmmakers as attendees, which was followed with a ballroom bash at the Hollywood and Highland Center.

[36] The DVD contained the film accompanied with deleted scenes, three alternate openings, a 6 part making-of featurette, an interactive game, a karaoke sing along, two music videos, and animation test footage of the female Chicken Little.

[40] A VHS version was also released as a Disney Movie Club exclusive, presented in a rare fullscreen aspect ratio.

[41] It also managed to claim #1 again in its second week of release, earning $31.7 million, beating Sony's sci-fi family film, Zathura.

[4] This reversed the slump that the company had been facing since 2000, during which time it released several films that underperformed, most notably Fantasia 2000 (1999), Atlantis: The Lost Empire (2001), Treasure Planet (2002), and Home on the Range (2004).

The critical consensus states: "Disney expends more effort in the technical presentation than in crafting an original storyline.

[44] James Berardinelli, writing his review for ReelViews, gave the film two-and-a-half stars out of four stating that "It is bogged down by many of the problems that have plagued Disney's recent traditional animated features: anonymous voice work, poor plot structure, and the mistaken belief that the Disney brand will elevate anything to a "must-see" level for viewers starved for family-friendly fare.

"[46] In his print review featured in the Chicago Sun-Times, Roger Ebert stated the problem was the story and wrote, "As a general rule, if a movie is not about baseball or space aliens, and you have to use them, anyway, you should have started with a better premise."

It's a perfectly acceptable feature cartoon for kids up to a certain age, but it doesn't have the universal appeal of some of the best recent animation.

Scott stated the film is "a hectic, uninspired pastiche of catchphrases and clichés, with very little wit, inspiration or originality to bring its frantically moving images to genuine life.

[50] Olly Richards of Empire gave the film a three out of five stars, saying, "Beyond a cheeky, twisty bit of genre-tinkering, there's more here for the under-tens than over-, but it's still charming, amusing and energetic enough to win you over.

"[52] Peter Rainer, writing in The Christian Science Monitor, graded the film with an A− applauding that the "visuals are irrepressibly witty and so is the script, which morphs from the classic fable into a spoof on War of the Worlds.

"[53] Plugged In wrote, "A postscript for parents: A single "mistake" defines Chicken Little, and he spends "the rest of his life" trying to live it down.

"[54] Common Sense Media gave the film a three out of five stars, writing, "Cute, sometimes-frantic movie has peril, potential scares.

Two days later it was released for PlayStation 2, GameCube and Game Boy Advance (October 20, 2005), and later Microsoft Windows (November 2, 2005).

It features Ace, the superhero alter ego of Chicken Little, and the Hollywood versions of his misfit band of friends: Runt, Abby, and Fish-Out-of-Water.

[62] Kingdom Hearts II debuted before the film's release in Japan, with the character's inclusion serving as a promotion for the then-upcoming movie.

[63] Directed by Klay Hall, the story would have involved Chicken Little getting into a love triangle between Abby Mallard and a beautiful newcomer, Raffaela, a French sheep.

[64] Soon after 2006, when John Lasseter became Walt Disney Animation Studios' new chief creative officer, he cancelled all sequels that were in development at Disneytoon, including Chicken Little 2, Meet the Robinsons 2: First Date and a sequel to The Aristocats, and ordered the studio to shift its focus towards spin-off films and original productions.