Continuity: When Roy Nord is about to go into the mid river passage, a girl is taping him on her digital camcorder. In the first shot her hand is gripping the camcorder's screen and bottom with one finger next to the LCD display, but in the following shot all of her fingers are at the bottom of the camcorder.

Visible crew/equipment: When the policeman returns from the Manhattan end, and screams, "There gonna dig us out!", as the car rises behind him, at the left of the screen the large black air bed making the car rise is visible.

Factual error: In the beginning of the movie, the explosion in the Holland Tunnel is caused when a car crashes into the trucks carrying toxic waste barrels. In real life, it is against the law for vehicles carrying hazardous chemicals to use any of the tunnels. Even if the drivers didn't know this, which is highly unlikely, they would have been pulled over by the Port Authority cops as soon as they headed for the entrance - lots of yellow barrels would be a bit suspicious.

Continuity: When Kit rushes to a table and scrambles everything off it to pick up a large object to stop the fan, the timer in the background says 28 seconds. But when Kit walks up to the big fan to slow it down we see the timer again and it says 19 seconds, but only two or three seconds have passed since we last saw the timer so it should be at about 24 or 25.