Continuity mistake: When Stallone and Williams are on the back of the train, Stallone smashes the window. Cut to Hauer. After this, the window is shown again, and the hole in it is larger than it was when broken.

Nighthawks (1981)
Directed by: Gary Nelson, Bruce Malmuth
Starring: Sylvester Stallone, Rutger Hauer, Billy Dee Williams, Lindsay Wagner, Persis Khambatta
Continuity mistake: When Da Silva is on the police firing range, he has a fresh target. He fires 5 times and then the camera does a closeup of the target, yet there are 8 bullet holes in the target.
Revealing mistake: When Da Silva has finished shooting on the police firing range, the camera does one last shot of the target and you can see the squib detonator wire hanging from the hole that's just been created in the head area of the target.
Peter Hartman: Oh, for Christ's sake, DaSilva! Come off this cop on the beat mentality! Your wife left you for it! Wasn't that enough.
Heymar 'Wulfgar' Reinhardt: There is no security.
Deke DaSilva: I didn't join the police force to kill people.




