In Officer McNamara's boathouse, Teller's leg brushes against a cylindrical cushion and knocks it off the couch as he is walking across the room. Shortly thereafter, the cushion has returned to the couch, and Teller picks it up before sitting down.
When Penn, Teller and Officer McNamara watch the P&T compilation video at the crazed fan's apartment, the video has scenes of "Weekend Live" from the beginning of the film where Penn is seated left on the couch and Teller on the right from the camera's point-of-view. But in the fan's video of the same segment, Teller is seated on the left and Penn on the right.
When Penn has trouble going through the metal detector at the airport, he takes off his jacket and vest while Teller rolls the metal ball on the ground to set off the detector while Penn walks through. But when Penn walks back through it to the other side, he doesn't set it off and the airport security checker takes no notice of it.
When Penn is being removed from the casino by the cop, his chants of "Attica! Attica!" don't match his mouth. That's because he originally sang "We shall overcome! We shall overcome!" as can be seen in the trailer.
When Penn, Teller, and Carlotta park and Teller replace the magnetic sign, he changes only one side. Earlier it was shown there is a magnetic sign on the other side also. Teller should have changed the other side too.