A Bug's Life is a computer animated film produced by Pixar Animation Studios and released by Walt Disney Pictures and Buena Vista Distribution in the United States on November 25, 1998, in Australia on Janaury 12, 1998 and in the United Kingdom on 5 February 1999. It's also the second Disney/Pixar feature film. It tells the tale of an oddball individualist ant who hires what he thinks are "warrior bugs" (actually circus performers) to fight off greedy grasshoppers. The film was directed by John Lasseter.

The story of A Bug's Life is a parody of Aesop's fable of The Ant and the Grasshopper. It is similar to the comedy ¡Three Amigos!, which is about out-of-work actors defending a town while thinking they're merely giving a performance. It also gives an obvious nod to Akira Kurosawa's Seven Samurai (as well as its Hollywood remake, The Magnificent Seven), which is about Japanese villagers hiring a rag-tag group of swordsmen to fight off rampaging bandits.

Reviews for A Bug's Life were overwhelmingly positive at the time of the film's release, and it has remained popular since, although it is worth noting that A Bug's Life, Monsters Inc. and Cars are the only three films from Pixar not to place on IMDB's list of the top 250 films.

Flik is an oddball, an individualist and would-be inventor in a colony of ants that is oppressed by a gang of Mafia-like grasshoppers, who arrive once a season demanding food from the ants, in return for supposed protection from "bigger bugs." While working with an invention to pick fruit more efficiently, Flik accidentally destroys the offering that the ants were putting together to appease the grasshoppers. Given a temporary reprieve by the grasshoppers, the ants agree to Flik's plan to recruit "warrior bugs" to fight off the grasshoppers—Flik actually believes the plan, while the other ants see it as a way of effectively exiling Flik.

Flik finds his way to the "city" (Garbage under a trailer), where he mistakes a group of circus performers, whose act collapses into chaos, for the warrior bugs he's seeking. The bugs, meanwhile, mistake Flik for a talent agent who wants to book their act, and agree to desert the act and travel with him back to Ant Island.

Flik eventually realizes his mistake and develops a new plan. He advocates building a fake bird to scare away Hopper, the leader of the grasshoppers, who is deeply afraid of bug-eating birds. The ants unite behind Flik's plan until the circus' ringmaster, P.T. Flea, arrives to retrieve his performers, blowing Flik's cover.

The ants try desperately to pull together enough food for a new offering to the grasshopper crew, but it can't possibly be enough. Dot, a tiny royal ant who idolizes Flik, overhears Hopper's plan to kill the queen after the offering and gets her friends to put Flik's bird plan back into action. It all nearly works, but when a confused P.T. inadvertently incinerates the bird, Hopper knows he has been tricked. Enduring Hopper's beatings, Flik declares, in response to Hopper's claims of racial superiority, "Ants don't serve grasshoppers! It's you who need us. We're a lot stronger than you say we are...and you know it, don't you?" Hopper knows it. His words make the ants realize that they outnumber the grasshoppers 100 to 1, they need not be oppressed by grasshoppers ever again. They all rise up in a wave of fury and chase the grasshoppers out, but not before Hopper attempts his final vengeance on Flik. Thanks to some quick thinking by Flik, Hopper ends up being eaten by a real bird that also inhabits Ant Island. Flik is welcomed back to the colony, and all the circus bugs join him in a celebration before departing Ant Island.

A Bug's Life made approximately $162 million dollars in its U.S. theatrical run, easily covering its estimated production costs of $45 million. The film also earned £28,824,239 in its United Kingdom theatrical run.

The DVD of the film is the first wholly-digital transfer of a feature film to a digital playback medium. No analog processes came between the creation of the computer images and their representation on the DVD.

As well, the pan and scan or 'full screen' version of the video (on the DVD as well as VHS releases) has been reframed and restaged; rather than sacrifice image in some parts of the film, the frame has been extended or objects moved to fit the narrower aspect ratio. Pixar continued this process on its later video releases. Also, the different characters (Flik, Dot, Francis, etc.) were on one (by themselves) cover of the video cover, considered a collectible in many cases.

A laserdisc version was also released in Japan by Pioneer, one of the last.

The widescreen version of the film has an aspect ratio of 2.35:1.

Relation to Toy Story:
It is widely believed that the bugs in this film live in the same universe as the toys in the Toy Story films. The following examples could be seen to show this:

At the scene where the bugs are riding the can, the Pizza Planet Cup from Toy Story falls down (see below).
When the two bugs are arguing about the light one of those bugs after getting zapped by the light fell down into a pizza planet cup from Toy Story.
The Pizza Planet truck from Toy Story is parked next to the mobile home as Flik approaches the City.
The Pizza Planet cup that Woody uses to cover himself in Toy Story is seen above the bar as Flik enters.
Two references are made to Toy Story during the outtakes:
Flik holds up a dandelion feather seed to use as a parachute and yells the signature catchphrase of Buzz Lightyear, "To Infinity and Beyond!"
At one point when two ants are laughing, Sheriff Woody suddenly appears holding the marker upside-down.

Further references to other movies:
When Flik looks around the city there is a bug with a pattern similar to that on the body of Sulley from Monsters, Inc., another pixar film.
During the first visit by the grasshoppers, Hopper mentions the "circle of life", an obvious reference to The Lion King.
A poster for Disney's "The Lion King - On Broadway" can be seen in the upper right-hand corner of the screen when Flik walks through the city traffic in Bug City. The location corresponds to the location of the New Amsterdam Theater on Times Square where the show ran at the time.
During the warriors' introduction, Slim whispers to Heimlich, "Wow, they sure are starved for entertainment" - a direct quote from the similarly themed The Three Amigos.
In one of the first trailers for Cars, the beginning of it shows a bee buzzing past a road to get to a flower, and the opening song from A Bug's Life can be heard, moments before Mater runs into the bee and gets blinded.
As seen in the trailer and the movie, there is a clip where there is fog and the grasshoppers walk out of it up a hill, a parody of a similar shot in the trailer and movie of Star Wars Episode I: The Phantom Menace with the Gungan army.

Other appearances:
The characters Flik and Hopper appear in the 3D movie attraction It's Tough To Be A Bug which can be found at the Disney's Animal Kingdom theme park in Walt Disney World, as well as at Disney's California Adventure. The Disney's California Adventure park also has an area of rides for younger children called "a bug's land".
In 1999, Disney produced Flik's Musical Adventure at Disney's Animal Kingdom as part of their Sing Along Songs series. Pixar created new footage of Flik introducing versions of classic Disney songs.
Flik and Heimlich appear in an "outtake" during the ending credits of the Pixar movie Toy Story 2. In one scene, Heimlich appears alone, crawling on a leaf in the same location as in the outtake as well as falling off it after Buzz chops through the leaves. Flik can be seen on the widescreen version of the film, on the right.
A scene from the film is recreated with Volkswagen Beetles in place of the bugs in the ending credits of Cars. Mack, John Ratzenberger's character in Cars, comments on the familiarity of the voice of P.T. Flea, eventually leading into him mocking Pixar and Ratzenberger.
The trailer which the Bug City is located in is the trailer that Randall in Monsters, Inc. gets thrown into.

Theatrical and video releases of this film include Geri's Game, a Pixar short made in 1997, a year before this film was released.

One Pixar tradition is to create trailers for their films that do not contain footage from the released film. Trailers for this film include:

All the insects from the circus troupe gather onto a leaf right before Heimlich bites the end of it off, causing them to fall.