New this month Continuity mistake: While Marge and Homer are watching the news on TV note their bed's footboard, then when Lisa angrily rushes into her parents' bedroom to confront Homer, the footboard's style is entirely different, but when Marge pulls Lisa away from Homer the footboard changes back to the original style.
New this month Continuity mistake: When naked Bart skateboards past Wiggum's squad car, the vehicle does not have a partition screen between the front and back seats, a rear-view mirror, or a side mount searchlight, but in the following shots all have suddenly appeared, with other changes.
New this month Continuity mistake: In the wide overhead shots as the crowd starts gathering at the dome edge and when Russ Cargill's image appears, note the homes on the third block at the far left side of the screen, which change when Cargill says, "Believe me it's the last thing we wanted to do."
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.
Continuity mistake: In front of Krusty Burger, when Lou carries a naked Bart to the sign post, the post is embedded directly in the concrete walkway slab, just beside the left corner of the patch of grass. Once Bart is cuffed, the sign post has actually moved down about 4 feet, and is also now embedded directly in the grass at the right corner. In following shots, it's at the left corner of the grass and then right again.
Continuity mistake: In the cinema, when Homer tells everyone how boring this is, behind Bart, Lisa, Maggie and Marge sits Otto, Kirk van Houten and Barny, but in the next shot behind them sit Otto, Jasper, Kirk van Houten and Moleman.
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 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: When Maggie does her disappearing act through the sinkhole, and Marge rushes to get Homer, the wooden porch swing is directly in front of the window, with its top beam as high as the top of the window. When Homer says, "This dome can play tricks on you," note the door and window behind Marge, because the swing is now gone.