Continuity mistake: In the middle of the film when the federal agents knock at Nico's. The federal agent says " here's the warrant Toscani ", in this shot, we see the agent with four fingers on the front of the warrant and only his thumb on the back, but in the following shot, he is two fingers at the front and two bent back at the back of the warrant. (00:48:50)
Continuity mistake: Just after the explosion in the church, Nico gives the bad news to his wife and mother (I think), and when they stand up the wife's hand is on the mother's back, but in the next shot when Nico's colleagues point to the federal agents her hand is on top of the mother's head. (00:39:20)
Continuity mistake: Near the end of the film when Nico is shooting at the bad guys in the hotel room where the priest is. Nico drags his colleague who has been shot in the arm past a mirror, in one shot the mirror is intact, but in the following shot the mirror has now been smashed. We did not hear a smash from a bullet hitting the mirror. (01:12:05)
Continuity mistake: Near the beginning of the film we see Nico and the other agents at the meat place getting ready for a drugs bust. Nico and his colleague are walking and they see a car driving fast to the drug dealers. When the shot changes to a front view we see Nico and the other agent on the right of the screen, Nico is taking his white coat off so we see his black leather jacket underneath, but in the following shot he is taking his white coat off again. (00:22:35)
Continuity mistake: In the scene just before Nico is ambushed by the group in the step van, he gets into the car wearing his jacket, but is seen driving wearing only a white shirt. (00:57:45)
Continuity mistake: During the car chase scene in the parkade, Salvano is hanging on to the rear of the car while Nico is driving in reverse. The car crashes through the wall, and Salvano falls off the car and appears to land on the subway tracks, causing a lot of sparks. After Nico is caught by the bad guys at the exit of the parkade; the car that had crashed through the wall is again shown; but the subway tracks are quite a distance away from the building where Salvano fell. There is no way he could have landed on the tracks.