Revealing mistake: When Lila wipes the cream off her face after Eddie gets the pill out of her nose, if you look at the towel, you can see a red mark appear on the towel. Most likely from the red make-up for her sunburn. (00:58:10)
Revealing mistake: During the long tracking shot at Dunkirk, steadicam operator Peter Robertson had a little assistance in getting around. This took the form of a kind of golf cart (from the beginning to just after shooting the horses), and later a rickshaw (from little after the choir to just before the steps ascending the billets). If you look at the ground to the left just as the camera begins backing away from the carousel, you can see tracks in the sand made by the rickshaw. Keep watching the sand near the actors' feet to see more.
Revealing mistake: Perhaps this is a revealing mistake or maybe intentional, but when Tandy is performing in the Peppermill, his assistant holds up a mask to cover his eyes. You can see that this mask has eye holes that are see-through. You can see her arm through the eye holes. (00:07:05)
Revealing mistake: After Homer knocks out the guard guarding the dome, Homer runs into the supplies shack. As he walks through the doorway, his right arm passes through it.
Revealing mistake: When Chuck first moves into Larry's house and goes to sit down on the daughter's green chair, it's evident that Chuck's weight didn't collapse the chair but rather it's pulled out to the right as if it was yanked from under him to achieve the collapse effect.
Revealing mistake: In the scene in Congress when Evan stands up and the room stares at him in shock as his "Noah-like" appearance is revealed once and for all, in the extreme close-up on Evan's face when he looks to the side, mesh tape is visible on his hairline, presumably to keep the wig in place.
Revealing mistake: As Jennifer Crawford drives past the gate of her residence (a private home, the real-life Sherman Residence, which then became the real house of Alyson Hannigan), she drives past a sign that says "Lobby Parking Lot Full." (00:07:45)
Revealing mistake: Meatwad and Shake get booted off the computer by Frylock so he can find instructions to the Insane-O-Flex. Watch the computer monitor. It rumbles, but the logo on it stays still.
Revealing mistake: When the boy accidentally shot himself, the gun wasn't pointed in the right direction at all.