Casual Person

Other mistake: When Homer kicks over the bomb, the time on the bomb decreases by half. Because of this, Krusty yells "Get outta here!" to Homer. However, Homer was standing in front of the bomb and Krusty was standing behind Homer, which means Krusty's view of the bomb was completely blocked, so he couldn't possibly have seen the bomb lose half of its time. He was definitely reacting to bomb losing half of its time, as he is shown looking straight at it just before he starts yelling at Homer.

Casual Person

Other mistake: When Homer is sliding down the rope, he knocks off several people climbing up. These people are never shown landing on the ground.

Casual Person

Other mistake: When Homer falls through the roof into the house we see Grandpa sitting somewhere other than the ground floor or the second floor. The problem is the Simpsons' house has an attic on top of the second floor and below the roof. The length of the attic's floor and the house around it are totally the same, so really what we should have seen was the attic, not Grandpa sitting somewhere. (00:08:25)

Casual Person

Other mistake: As Green Day's barge is sinking, the barge is showing turning sideways, but the monitor speakers on the barge don't seem to be affected by the barge turning. (00:03:50)

Casual Person

Other mistake: When Springfield loses all the power, Mr. Burns' manor (with the Happy Holidays from Mr. Burns sign on it) seems to have appeared out of nowhere. (00:44:00)

Casual Person

Other mistake: When Mr. Burns is talking to Apu, Doctor Hibbert and Chief Wiggum about supplying Springfield with power, he is writing with his right hand despite being left handed. (00:45:00)

Casual Person