Continuity mistake: At 50 minutes in, we have the silver case and paint transfer which DeNiro sees as to why the case he had was fake. But when DeNiro first takes and hands off the case, he has no silver transfer on his jacket front, nor on his sleeve. There's also no silver paint transfer to Gregor, who'd been holding the case before DeNiro took it from him. Once the shot moves to the alleyway, then the silver is seen on DeNiro's coat. (00:50:40)
Continuity mistake: In their initial hideout discussing the ambush, De Niro repeats several times to Sean Bean "Draw it again" then they have argument and De Niro apprehends Sean Bean. In the shot where De Niro pulls gun out of the back of Sean Bean's trousers, Sean Bean is definitely turned with his back to De Niro, where in the previous and following shot he is facing De Niro. (00:29:30)
Continuity mistake: At the end of the chase in Paris, when the BMW falls off the bridge into the building site, Gregor leaves the car through the back door window. During the chase he sat in the front of the car. He had also fastened his seatbelts, which would have prevented him from falling into the back of the car while it was crashing.
Continuity mistake: In the ambush under the bridge, the police car which can be seen across the river is a Peugeot 405, yet by the time it reaches the people at the bridge and chases the Audi it is a much smaller Peugeot 205.
Continuity mistake: During the final chase, if you see Deidre's hair, you will realise that the window was sometimes open and sometimes closed.
Continuity mistake: During the final chase the cars enter a tunnel and Jonathan Pryce starts shooting at De Niro's car. To avoid being hit De Niro drives on the outside and starts to overtake a car to use as a shield. The inside shot doesn't show this car, and when the driver gets shot in the arm De Niro's car is somewhat behind it.
Continuity mistake: When Frank and Deidre are in the car watching the villa and she climbs onto his lap to kiss him while he is in the driver's seat, it's clear that there is no steering wheel in the vehicle.
Continuity mistake: Just before they head out to make the deal with the arms dealers, De Niro and Skarsgård are talking at a table, if you look on the table there is a flask and a cup. In the first shot, the cup is on the left of the flask, but on the overhead shot it's on the right of the flask, then it's back on the left. (00:14:00)
Continuity mistake: When the group is going over the Nice ambush, Sam gets up, closes the door and Deidre walks in from the kitchen and sits down. At the door, Larry is taking a sip of his drink, but in the following shot the cup is on its saucer and he is holding it with both hands. (00:31:15)