Character mistake: When Charlie is calling out the brick count to Napster from the subway, he describes it as being "13 across, 4 high, 4 deep". The bricks appear to be 2 deep in the safe (13x4x2), so he could just be lumping two shelves together, which works (13x4x4 = 13x4x2x2). The problem is that when the camera pans down there are 3 shelves in the safe. This means that there are more than the 208 bricks that Napster announces. (01:33:40)
Continuity mistake: When the Mini Coopers enter the subway tunnel, the white Mini is bumped by the train, yet in the following scene and the rest of the movie no body damage is visible to the rear of that Mini. (01:27:45)
Factual error: The group is plunged into the icy water for at least several minutes wearing nothing but light jackets yet no one seems to be suffering from hypothermia in the slightest when they show up on shore.
Factual error: Even a minor low-speed impact of a motorbike that heavy into a car door would damage it so badly that it would look different than shown on the white Mini - if the door were still there. Most certainly the glass would be shattered and the door could not be closed. (01:36:30)
Factual error: The crew sets off explosives so the armored truck will fall through the street into the subway tunnel. In reality, the subway tunnels underneath Hollywood Blvd are about 6 stories underground. That means the truck would have to fall through approximately 80 feet of concrete, soil, rock and more concrete to fall into the tunnel. (01:29:15)
Continuity mistake: When the blue Mini is driving through the streets, there is a dent on the rear wing on the passenger side, but when you see the car drive into the train, the dent is no longer there. (01:37:00)
Revealing mistake: In the chase scene in the subway, Napster stops the subway train at the end of the tunnel to block the tunnel entrance. When you see the view on his laptop, the train station CLEARLY has a metal railing. There is no such railing throughout the rest of the scene. (Yes, it's likely while filming that railing was removed to enhance the scene then put back.) (01:27:45)
Continuity mistake: In the sequence where the three Minis are being driven around a waterway as a rehearsal for the job, the auxiliary driving lights (the ones fixed in front of the radiator) go off and on. In the first shot all the cars have these lights on, in the next external shot the white car has them switched off, then back on again for the immediately following shot. Shortly afterwards the red Mini has these lights off for one shot - then back on in the very next one. (00:58:15)
Continuity mistake: When the armoured truck begins to fall into the subway, the above ground shot shows the truck tilting forward as it falls. The next shot from the subway shows the truck falling exactly horizontally.
Factual error: In the flashback scene of Lyle when his roommate steals the Napster code, the caption says Northeast University - 1999. The computer Lyle is sleeping at is running Windows XP, which was not commercially available at the time. (00:29:30)
Continuity mistake: In the scene where "the Napster" is changing the street lights, there is a shot where armored truck 128 is slowly moving behind a grey or white Saturn (right after you hear on the radio "Truck 128, what is your progress?"). In the next shot, where one of the men in the truck says "Ah, get us outta here," you see Napster's computer. On the computer, when you see the street camera looking down onto truck 128, the Saturn is gone and all the surrounding traffic has moved. Truck 128 is one lane closer to the curb, and the car and SUV that were on 128's right in the live shot appear to be to the truck's left on camera. Other cars are gone or have changed places as well. (01:24:55)