Continuity mistake: 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. (00:33:15)
Continuity mistake: When Marge runs back to the kitchen to retrieve the wedding video, the house is ablaze. In the next shot, when the mob is carrying the car away, there are no flames visible in the house. (00:33:40)
Continuity mistake: When the Simpsons are trying to escape the angry mob, as Marge and Homer get into the car, the driver's side mirror is missing from the door. Then in the next shot, the side mirror appears on the door, but now the rear-view mirror has vanished. (00:33:40)
Continuity mistake: While the Simpsons are walking the plank of wood between their house and Flanders' house, in the shot right after Plopper the pig pushes the wood plank off the windowsill, just as the Simpsons fall and the arrows fly by overhead, note the mysterious cable box and long cable that have suddenly appeared out of nowhere, attached to the wall beside the second window on the opposite side of the chimney. (00:33:50)
Continuity mistake: 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. (00:33:55)
Continuity mistake: When the Simpsons see the nooses in their backyard, you see Jimbo and Kearney put a pacifier on Maggie's noose, but in the next shot where you can see the nooses, the pacifier is gone. (00:34:15)
Continuity mistake: 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. (00:34:40)
Continuity mistake: The arrow that Nelson fires into Homer's head changes place between shots. It goes from on top to the side. (00:35:30)
Continuity mistake: When Homer is try to escape in the quicksand, his eyes are below the sand line. The camera cuts to Moe then back, and now his eyes are visible again. (00:35:35)
Continuity mistake: When Maggie jumps into the sink hole whilst the mob are invading, Drederick Tatum (the Mike Tyson parody character) is seen standing directly in front of the dome. But after Marge, Bart and Lisa have jumped into the sink hole and it cuts to a wide shot, Drederick Tatum is seen a lot further away from the sink hole than he was previously - look closely to the right of screen in the wide shot, that's where Tatum is. (00:35:35)
Continuity mistake: When Colin 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. (00:36:25)
Continuity mistake: The Simpsons leave the dome with nothing. However when Marge, Bart and Lisa are on the train and in the EPA van, Lisa has now got her sax. (00:37:05 - 01:00:15)
Continuity mistake: In the motel room after escaping the dome, the circles of light made by the lamps on the walls and ceiling change between shots. (00:40:00)
Continuity mistake: When Homer is riding the motorbike around the ball of death, the first try he has the bike does not have flames painted on but after the third try the flames have appeared on the bike again. (00:41:30)
Continuity mistake: In the shot where we see Homer first in The Ball Of Death, two pink tents are visible in the background. But when it cuts to the wide shot, the two tents in the background have disappeared. (00:41:30)
Continuity mistake: At the carnival, when the Simpsons reach the spherical cage, the pick-up truck is parked right beside the base of the ride. In the shot of Homer's failed attempts at riding the motorcycle around the sphere the truck is gone, though it should be seen in this shot. (00:43:00)
Continuity mistake: In the scene where the newscast (Day 37) is being watched on the TV at Moe's, in the first shot of the TV there is a dart in the roof, but in the long shot the dart is no longer in the roof. (00:43:40)
Continuity mistake: When Bart is proving he is sober, Homer is pumping petrol and eating a hotdog. The camera cuts and Homer is eating a hotdog but not pumping petrol like he was a second before. (00:43:45)
Continuity mistake: At the gas station market, when Bart puts the can of soda pop on the counter, we see the yellow label on the glass beef jerky jar, facing away from Bart. When Marge points to the beef jerky its label has vanished, then when the clerk points to the similar looking family the label is back. (00:45:00)
Answer: The family doesn't treat him very well, particularly Homer. He may have wanted some revenge on them. Grampa is also a little senile.
Phaneron ★