Continuity mistake: When circling the dome on the bike, it leaves tyre marks. The camera cuts to Bart and the marks have gone. (01:09:30)
Continuity mistake: The clock on the bomb instantly jumps several seconds despite instant cuts. It goes 17, 16, *instant cut* 11, 10. (01:09:40)
Continuity mistake: During the bike stunt at the end, Homer's hair flows in some shots, but is completely rigid in others. (01:10:00)
Continuity mistake: When coming down the dome the height of Homer on the dome changes between shots. (01:10:35)
Continuity mistake: When jumping the gorge, the position of Homer and Bart changes depending on the angle. (01:10:50)
Continuity mistake: When Cargill confronts Homer, he raises his shotgun. In the next shot, his shotgun is suddenly lowered. (01:11:35)
Continuity mistake: When Homer circles the dome on the bike, in the first two shots (close-up and wideshot) Homer's left hand is gripping Bart's left wrist, but in all of the following shots it is Homer's right hand that is gripping Bart's left wrist. (01:12:50)
Continuity mistake: When Homer and Bart are on the motorcycle trying to get rid of the bomb, the bomb slips out of Bart's grip. When he's hanging onto his father's shirt, Bart first grips the bomb's handle with his palm and fingers facing the front of the bomb, with the clock. Then when he's hanging onto his father's hair, Bart's hand has flipped around and he's now gripping the bomb's handle with his palm and fingers facing the back of the bomb. Something to look out for is the shot just before the close-up of Chief Wiggum, because as Bart raises his arm the bomb actually flips over in his hand while we're watching. Quite impossible. (01:12:55)
Continuity mistake: 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. (01:13:05)
Continuity mistake: At the end when everyone is cheering at Homer and Homer notices Marge, Lenny and Carl are in three places at once. First, just as Homer starts his bike to get Marge, Lenny and Carl are right behind him. Second, just after Homer carries Marge on to the motorbike Lenny and Carl are behind Homer without enough time to move. Third, just as Homer and Marge drive off in the motorbike, Lenny and Carl are now in front of Homer without enough time to move. (01:13:20)
Continuity mistake: Milhouse is seen when Lisa is looking for Colin and a few frames later he is in the middle of the town with no time to move there. (01:13:40)
Continuity mistake: At the end when Homer is nailing the two tiles to the roof, they are yellow. The camera cuts and now they are red. (01:14:00)
Continuity mistake: During Homer's attempt at rescuing his family, when the EPA truck stops at the fake stop sign in the wideshot the truck's visors are up and there's no rearview mirror, but in the next closeup both visors are down and a rearview mirror has appeared.
Continuity mistake: When Homer and Bart are fixing the roof (near the beginning) there is no tree near Ned Flander's house. Later on Bart is on a tree next to Ned's house talking to Ned Flanders.
Continuity mistake: After the mob knocks down the front door Krusty tells Teeny to, "Take out the baby," and when Maggie breaks her bottle to take on Teeny, the monkey is standing on the fallen door, but in the next closeup he's standing on the floor beside the door.
Continuity mistake: The tattoo on Cletus' upper arm has vanished when he volunteers to distract Cargill so the others can attempt to escape, but the snake tattoo reappears when he's talking to Cargill.
Continuity mistake: When Marge gets into the car and tucks the wedding video into her hair, the rearview mirror is attached to the roof of the car, but as the mob carries the car to the backyard the rearview mirror is now attached to the windshield.
Continuity mistake: When Lisa sees Milhouse near the end, the door on his house hangs askew from the right door jamb and there is nothing above it. However, after Colin shows up, in the next shot when Lisa jumps up, the door now hangs askew from the left door jamb and there is wiring hanging above it (from the broken light fixture). Also note that the roof is much lower, and a spigot appears under the window. Additionally, Lisa's position when talking to Colin changes - first they're standing to the left of the house, then to the right of it, then in front of the stairs at the center.
Continuity mistake: When President Schwarzenegger tells Russ Cargill he will have to go back to making family movies, there is a "Diaper Genie" promo poster on the Oval Office wall and on the immediate left of President Schwarzenegger's desk. But the promo poster disappears and the walls of the Oval Office become further from the desk in the next long shots.
Continuity mistake: When Homer is eating a krusty burger you can see crumbs on his face, but in the next shot of him talking the crumbs have vanished.
Answer: I believe the joke is supposed to be that the way Texans speak is a language all its own.
Damian Torres