Continuity mistake: In the scene where Roger and Hoskins are moments away from crashing into a bridge in the cab quickly look at the road there is no gate in between the roads. But when they jump onto the bridge they crash right into a gate. (00:57:15)
Continuity mistake: When Mac's on the windshield and the car starts to dodge cars, one shot from inside the car shows the alien has disappeared.
Continuity mistake: When Garfield is in outer space asking the computer to tell him if he's really living in life number 9, his armchair vanishes for an entire shot. (00:40:00)
Continuity mistake: When Sykes is at his desk monitoring Fagin from a security camera feed, Dodger suddenly appears onscreen between shots, right beside Fagin. (00:51:00)
Continuity mistake: John Heard's racquet jumps from one hand to the other when he and Tom Hanks fight on the tennis court. (01:17:20)