Continuity mistake: When Homer and Bart are on the roof attempting to fix the shingles, Homer's wearing a tool belt around his waist with assorted tools, but when Homer shakes the antenna his tool belt has vanished (Homer's belly cannot hide that tool belt), but it reappears when Bart's hanging onto the gutter.
Continuity mistake: When Homer runs into the EPA supply shed to find something to help him climb the dome, there's a window on each side of the doorway with little space between them, but in the interior shot not only is the style of window different, the space has increased significantly and the second window is gone.
Continuity mistake: During the scene with the angry mob, knobs on the bedroom's wall cabinets keep switching between being on the left or right sides of the cabinet doors (which would also change the direction those doors open). (00:32:50)
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: During the town hall meeting, on the lower floor there are two sections of seating divided by an aisle, and in every shot of the audience we see people switch seats or sections they're in, and some clothing changes as well. Just a few examples: 1) the Sea Captain's first seated behind Moe and Lenny, then he's behind Willie; 2) Krusty, Mel, and Luigi are behind Bumblebee, but the next closeup has Mel seated in front of Luigi and Bumblebee, and Krusty has vanished, but he reappears when they spit the water; 3) And in that same shot the guy behind Luigi is wearing a white jacket and purple shirt, but when they all gasp he's wearing a black shirt and green jacket. And so on. (00:19:20)
Continuity mistake: When Marge and Homer are in the backyard with the silo, there is a drawing of a pig on it, but in Homer's close-up with part of the silo in the background, the part of the silo that's visible should have the pig drawing at the top, but it does not. Later, when the silo's found in the lake, the words and drawing differ and are much lower on the silo. (00:22:30)
Continuity mistake: After Lou shoots at Bart's skateboard, before Bart flies past the truck's windshield, when we see Krusty Burger across the street (note the post and triple window), the road surface has double solid yellow lines. The double lines can also be seen when Lou scrapes Bart off the window. However, when Bart is handcuffed to the post, that same road now has single broken lines. Also note when Lou cuffs Bart there aren't any lines at all on the road. (00:12:50)
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: When Homer falls onto the barbecue during the failed escape, there is a lower window at the corner of his house, which didn't exist in the exterior shot of the house, just before we see Homer and Marge watching the news about the silo being discovered. (00:31:50 - 00:34:50)
Continuity mistake: In Alaska, when Homer is holding the wood logs, the amount of logs changes from three to four between shots. (00:48:00)
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)
Continuity mistake: When Bart is inside the gas station market, while Homer pumps gas, Bart puts the soda pop can directly on the counter beside the white mat, but in the next shot, when Bart turns around the can has moved itself onto the mat, at the farther end.
Continuity mistake: When the Simpsons are staying at the Red Rash Inn, there's an air vent on the wall near the door, which appears and disappears between shots.
Continuity mistake: When the Simpsons first get to the spherical cage at the carnival, the truck is parked with its front facing forward and its back end facing away, behind the ride. However, when Homer gets in and drives away, the truck has turned about 90°, with its back end now facing the ride perfectly.
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: After Homer and Marge watch the news about the silo found in the lake, when Homer walks to the window we see that there are two blue panel drapes with tiebacks on the left and right side of the sliding window. However, when Homer shouts at the mob in the exterior shot, there is also another blue panel hanging down at the center of the sliding window, and the side panels are hanging straight down, without the two tiebacks. (00:32:30)
Continuity mistake: After the news broadcast about the silo being discovered in the lake, in the first shot of Homer nailing the bedroom door shut, the blue panel drapes and valance have become beige (seen right behind Lisa and Bart). (00:32:30)
Continuity mistake: When Bart looks out the bedroom window, and Ned tells Bart that he and his family should crawl out on the plank to his house, the pair of blue panel drapes and tiebacks have turned yellow. (00:33:00)
Continuity mistake: When Marge and Homer are watching the news about the silo found in the lake, the TV sits on the dresser in front of their bed. The TV has vanished when Lisa runs into the bedroom, and when Marge tells Homer to go out, face the mob and apologize for what he did, the rest of the wall is visible, sans TV. (00:30:40)
Continuity mistake: When the silo has been dumped and the pollutant begins spreading, there is no rope on the ground behind the car, but when Homer gets back into the car to drive away, there is a bunch of rope lying on the ground behind the car. (00:23:05)
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 ★