Factual error: When Gregor shoots the guy in the car after nearly killing the little girl, blood sprays over the window, but there's no bullet hole. If the bullet exited his head, hence spraying blood, it should have gone through the window too. (00:55:00)
Continuity mistake: In the middle of the film when Gregor is selling the suitcase onto the Russian guy in his jeep, you can see that when Gregor puts his foot on the accelerator the other guy jerks about and the last shot we see his head is down, yet the following shot he is looking at Gregor before the splatter of blood on the window. (00:55:05)
Deliberate mistake: When Gregor is holding a long lens camera in a cafe house, he is pointing it at two men, you can see this when he looks through the lens, yet the next shot of through the lens is not from his camera but more like from a person standing right next to the two men. (00:59:40)
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)
Continuity mistake: When Seamus, Deidre and Gregor are in an apartment just after Seamus comes out of the bathroom after beating up Gregor, he is holding a glass in his left hand after he pours the drink, then in the following shot the glass is now in his right hand. (01:13:20)
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)
Continuity mistake: On the freeway chase scene between the BMW and the Peugeot, when the BMW gets flipped over and slides and the Peugeot hits it, the BMW goes over the edge and Peugeot slides round almost facing backwards. In the following shot from the ground the Peugeot has changed direction. (01:29:55)
Visible crew/equipment: When Vincent and Sam are running through the ice rink's changing rooms to get the case off Gregor, the camera passes a mirror. If you pay attention, you can quite clearly see the boom operator wearing a blue and white checked shirt in it. (01:43:40)
Continuity mistake: During the chase scene, there is a Citroen XM series II (the citroen sign in the middle, on the front) and then there's a Citroen XM series I (the citroen sign on the driver's side, on the front). It changes back and forth a couple of times. There's also a difference at the bottom of the car; the series I carries the name Citroen XM on the left side, while the series II bears a Citroen sign on the left side and the XM sign on the right.
Continuity mistake: During the big car chase the Audi S8 rams the Citroen, pushing back the headlights on the Audi but on the subsequent scenes in the town the front of the Audi is intact.
Continuity mistake: When Gregor tries to sell the case, he puts the Jeep into park (we hear the sounds of an automatic transmission, and in a brief shot of the pedals there's no clutch). But he jolts the car forward a minute later without shifting into drive.
Continuity mistake: At the end of the Paris car chase with the BMW M5 and the Peugeot, Jonathan Pryce fires a few shots at De Niro and Jean Reno in the pursuit car. One shot takes the left wing mirror clean off, and De Niro even jerks his head to the side in reaction to the shot. The mirror comes off in mid frame, and you can even see the adjustment wires dangling from the mirror base. In all subsequent scenes, the mirror is back on the car.
Visible crew/equipment: During the initial chase with the Audi S8 immediately after the messed-up arms deal, you can see exhaust fumes and tire smoke from the leading camera car in most front shots of the gang.
Continuity mistake: In the early scene of the arms deal, when they are waiting in the car for the arms dealers to turn up, Robert De Niro (in the back seat) is initially unshaven, but then later in the scene he is clean-shaven.
Continuity mistake: In the car chase after the bald guy with the suitcase, when his car approaches a fish market inside Nice, you can see a guy with a water hose running to the right, to avoid being hit by a car. His hose is connected to some point on the left, however in the following shot there is no pipe across the road.
Factual error: In the scene where Sam & Deidre are sitting in the Audi spying on the villa, you can see that the car steering wheel is a 3 spoked sports type which is right for that model. Later just before Larry smashes it into the Citroen outside the cafe, there is a close up of him as he comes out of a side street, you can see that the steering wheel is changed to that of 4 spoke design used on the normal A8 and not on the S8.
Continuity mistake: After the first big chase scene, Robert De Niro is seen with the group in their hideout. As he treats the man who was injured, he puts the bottle of alcohol down twice.
Continuity mistake: In the apartment with Diedre, Seamus's hand jumps from the bottle of scotch to his side.
Continuity mistake: When Gregor is in the chase scene at the old stadium, he runs/falls down some stone steps and loses his wire-rimmed glasses. In the next scene, he is wearing them once again, looking over his shoulder for Sam, who is chasing him.
Answer: It's a while since I've seen the movie but if I'm remembering correctly, the meet was at short notice. Gregor had the case prepped for the swap but didn't have a chance to paint it in enough time for the paint to dry properly.
The_Iceman