After Homer accidentally pollutes the town's water supply, Springfield is encased in a gigantic dome by the EPA and the Simpsons family are declared fugitives.
Homer adopts a pig who's run away from Krusty Burger after Krusty tried to have him slaughtered, naming the pig "Spider Pig." At the same time, the lake is protected after the audience sink the barge Green Day are on with garbage after they mention the environment. Meanwhile, Spider Pig's waste has filled up a silo in just 2 days, apparently with Homer's help. Homer can't get to the dump quickly so dumps the silo in the lake, polluting it. Russ Cargill, the villainous boss of the EPA, gives Arnold Schwarzenegger 5 options, forcing him to choose 4 (which is, unfortunately, to destroy Springfield) and putting a dome over Springfield to prevent evacuation. Homer, however, has escaped, along with his family. Can he stop the evil Cargill from annihilating his home town, and his family, who have been forced to return to Springfield?
Written by movieguy3
In the original script, Marge was going to have the vision in church. However, it was changed when the crew felt it would make more sense for the family to be ignoring Grandpa than Marge.
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Goofs
Continuity:
When Homer and Bart are at Krusty Burger, while Krusty is filming his commercial, the pig runs to Homer in fear of being slaughtered. While Homer's looking down at the pig, Bart is shown to be wearing his regular blue shorts instead of the jeans that Flanders gave him.
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Quotes
[first lines]
Scratchy:
[having just landed on the Moon]
We come in peace for cats and mice everywhere.
[Itchy impales and beats Scratchy with flag pole]
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Crazy Credits
The DVD release includes a tongue-in-cheek disclaimer by the Environmental Protection Agency disassociating itself from the way it is portrayed in the film. The disclaimer appears on screen before the standard FBI anti-copying warning.
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