Other mistake: After the Teflon-coated bullet is removed from DeNiro, he states that Sergi was trying to "stamp him." The bullet that hit DeNiro was actually a ricochet that Sergi fired at Jean Reno. DeNiro would have known this as he watched it happen. (01:14:20)
Plot hole: At the end of the movie Deniro Sam says he was only in this to get to Seamus, and that he never left the CIA. But at the end of the car chase in Paris, when the BMW falls off the bridge into the construction site, Seamus and Deidre are injured, and knocked out, and dragged out of the wreck by the construction workers. Why didn't Sam just go get the incapacitated Seamus then? Or at least follow to see where Seamus and Deidre were taken for medical care?
Suggested correction: Because at that point he was maintaining the ruse that he was after the case.
Factual error: When Robert DeNiro fires the grenade launcher at the car, it would have destroyed the car and killed the passengers, not merely blown up the engine. Likewise, firing a LAW rocket at a sedan later in the chase would have completely dismantled the car, not merely blow up the back end. (00:44:35 - 00:46:20)
Continuity mistake: As Gregor tries to flee on foot through a crowd from Sam and Deirdre, he jumps down several stairs and loses his glasses which spill to the ground, with Sam right behind. Cut to next shot of Gregor running toward the camera with glasses back on, pursued by Sam. (01:07:00)
