Continuity mistake: When Anthony Hopkins is talking with the Prime Minister, he takes out a clock Autobot which he threatens to use on the guards. He is still holding the clock Autobot in his hands when he turns back to talk with the Prime Minister, but in the next shot, it has suddenly disappeared from his hand.
Continuity mistake: Saving Dr. James from Andre, Lin smashes his car against Andre and pins him to a truck. In the shot through the windshield, Andre's head comes to rest on his right arm, but when it cuts to a different angle, suddenly his right arm is stretched out above his head along the hood towards the windshield. (00:13:35)
Visible crew/equipment: When Baby is in the car that he stole after running away from the mall center and he crashes against the back of the pickup, you can see the cameraman and the crew member on his left reflected in the rear window.