Continuity: When Nelson says "I'm using a red arrow so I know who I kill," the word "Springfield" appears on his sweatshirt. It wasn't in the previous shot.

Continuity: When the mob is charging toward the Simpson's house, we see Nelson in his regular clothes. When he shoots the arrow at the Simpson's, he is wearing a Springfield T-shirt.

Continuity: At the end when everyone is congratulating Homer, Comic Book Guy is by Homer. Homer then rides down the street to Marge and Comic Book Guy is suddenly by Marge.

Continuity: When Homer cuts the ropes securing the Pig Crap Silo to the car, he marks the car. Next shot the marks have gone.

Continuity: The one eye by the back leg of the squirrel keeps disappearing and reappearing depending on the shot.

Continuity: When Bart and Homer are up on the roof, Homer puts the hammer on the roof next to his leg. In the next shot when he dares Bart to climb the antenna, it's gone.

Continuity: In the motel room after escaping the dome, the circles of light made by the lamps on the walls and ceiling change between shots.

Continuity: When Marge is reconstructing Grampa's prophecy with magnets on the fridge, she moves the magnet saying" eyes" up a few inches to complete a sentence. When the shot changes to a wider angle, the magnet is back where it was before she moved it.

Continuity: The door to Homer's cabin in Alaska changes positions, from facing the street when he comes home from the bar to facing over a cliff when he decides to follow Marge and the kids back to Springfield.

Continuity: During Bart's flashback of him and Homer fishing, Homer drops the bug zapper into the lake. Dozens of fish come floating to the surface all over the lake. After the shot where Homer scoops up a fish and is zapped for it, there's a reverse-angle shot of Bart with no dead fish in the lake around him.

Deliberate "mistake": For the car to be carried by the angry Springfieldians, there would need to be a big jump between the ground and the car, but from the car view there is no sign of that.

Continuity: When Bart is chained to the post, a large piece of grass used to cover him appears from nowhere.

Continuity: During the Green Day concert, Edna Krabapple sits on Skinner and takes up the sweater that says "Not my boyfriend," but when Green Day is done singing "Da Da Da," they are not there anymore.

Continuity: When Bart skateboards to Krusty Burger naked, he passes Agnes Skinner in the middle of town. On the left side of the screen is Mr. Largo, the school music teacher. A few shots later, when Bart approaches KB, Mr. Largo is seen walking down the sidewalk. There is no way he could have caught up and passed Bart in that time span. Not only that, but he and Bart are headed in completely different directions.

Continuity: When the angry mob is outside the Simpsons' home, Lisa sees Colin in the crowd. Carl is next to him, with his torch in his left hand. In the next shot, when Carl sets fire to a bouquet Colin brought for Lisa, Carl's torch is now in his right hand.

Continuity: In the scene where Lisa's boyfriend is trying to play "Lisa's song" from the other side of the glass, at first the guitar has an f-hole, and in the next shot of him, it's a solid body guitar.

Continuity: The clock on the bomb instantly jumps several seconds despite instant cuts. It goes 17, 16, *instant cut* 11, 10.

Continuity: In the shot where Bart is causing avalanches, there is no lake/river by the house. When Homer decides to go and save his family one has suddenly appeared.

Continuity: When Homer tells Lisa to clap in Alaska, there is some snow on his left ear that moves to the top of his head.

Continuity: Barney runs head first into the dome and slides down horizonatly. Next shot he is stood up and is shoulder barging the dome.