Continuity mistake: When Data is being dragged by the sticky dart in the opening sequence, the camera angle changes from in front to behind, and suddenly the distance between Data and the oil drum dramatically increases even though he is moving towards it.
Continuity mistake: When Sloth is trying to reach for the Baby Ruth, the candy bar's position and the way it faces changes between shots.
Character mistake: When looking at the newspaper about Chester Copperpot, the caption under his picture reads, "Reclusive scavenger claims, 'I have they key.'" It should read "I have the key."
Revealing mistake: When Mikey is on the balcony he turns towards Bran to hug him, and then Bran carries Mikey all the way to back of the balcony. During that whole time there are leaves falling from the sky. All the trees are outside of their picket fence and lower than their balcony roof. So they must have had crew on the roof throwing leaves down for the effect. (00:21:10 - 00:21:40)
Continuity mistake: When the boys run out on Brand and Mouth flattens his tires, Mikey is wearing a denim jacket. When they are looking for the restaurant after riding their bikes, he is wearing a yellow coat over his denim jacket he didn't have with him when he left the house. Mouth also suddenly has a raincoat over his jacket.
Factual error: When the Fratellis break Jake out of jail, Francis shoots a trail of gasoline on the ground with his pistol, which lights it. In reality, this wouldn't happen, more than likely the bullet would bounce of the ground or embed itself, but not cause any sparks (if it caused any, wouldn't be long or hot enough to ignite) to light the gas.
Continuity mistake: When Data starts being pulled towards the bin, the first shot shows him a half foot away from the bin. The second shot shows him several meters away from the bin. Then the third shot that shows Data falling into the bin shows him only an inch away from the bin at the start of the shot. (00:04:05)