Revealing mistake: When the police car crashes through the grating that was dropped down in front of it at the end of the tunnel, the occupants are dummies - they just bounce about in the same upright position whilst the car drives into the river.
Factual error: While Bridger is watching the film of the Mafia boss following Beckerman he signals for the film to be stopped so he can look at the close up shot of the man. He is watching a 16mm film shown through a bog standard projector - stop a film like that for more than two seconds without closing down the projector shutter (this doesn't happen - if it did the screen would darken instantly) and it will melt and catch fire. This doesn't happen.
Continuity mistake: After the gang is pulled off the bank job, they race away in the three Minis - as they go through a tunnel at one point they roll up and down the sides of the tunnel. The mistake is that each car supposedly has two occupants, but on one shot of the cars in the tunnel, one car has only a single occupant - visible because the car following has his headlights on illuminating the car in front.
Continuity mistake: When the car transporter is trying to break into the building, where they are transferring the gold from the security vehicle, a car drops from the transporter, lands on a police car, and the blue cover from the police light comes off completely in the first shot. But a second later you see the face of the policeman with the light in the foreground, which now has a jagged broken base left on the car.
Revealing mistake: When the three Mini Coopers drive onto the coach, the first Mini doesn't have fitted headlights. It also has a brand new rear wheel fitted that is clean and the rest are dirty.
Continuity mistake: When the 3 Minis are pushed off the coach, if you look carefully there is view shown briefly of the cars interior, which has red door pillars. When the shot reverts to the external view the cars colour is white.
Visible crew/equipment: As the armoured truck is midway from the airport to the Fiat plant, the film crew is seen in the mirrored finish of the stripe running down the length of the truck.
Plot hole: Why on earth do they drive the Minis up the ramps into the bus while it is moving? They are on a long, straight, relatively quiet stretch of road, but there are cars and buildings about. That ramp is going to make a noise like the sky coming down (we see sparks as it scrapes on the road) and they put on a display anyone would be, frankly, amazed to see. Don't they think one single person would call the police? Don't they think that reports of three brightly coloured Minis will be connected with the recent robbery? They cannot possibly think they have to load the Minis on the run in order to elude the police; they have lost the police cars and are no longer being pursued. Why not just park the bus on the hard shoulder and drive the Minis sedately up that ramp? An unusual sight, maybe, but nowhere near as clumsy, obvious and attention-getting as the way they do it. They are asking to be pulled over and arrested.
Continuity mistake: Right at the beginning, the red Lamborghini goes into the tunnel and is blown up, yet when it is taken out not one part of the bodywork is charred, it is still a shiny red.
Continuity mistake: Each of the Mini Coopers were fitted with three spot lamps on the front grille/bonnet in a triangle formation. In part of the chase sequence through the sewer, two of the Minis have sprouted three more lights - one under each headlamp and one in the centre of the grille under the three original spot lights.
Continuity mistake: When the Minis are going through the tunnel, the police car behind them has a set of lights which are the same as the Minis, which it did not have before.
Other mistake: When the Mafia are having a dinner party, the film cuts to Charlie Croker throwing his bicycle into the substation to cause a powercut. After the big explosion, the camera switches back to the dinner party and then all the lights go out. But before the lights go out, if you look at the end of the dinner table, there is a doorway, and you can see smoke coming from the candles which have already been lit before the lights go out. Within seconds of the power cut, these candles are brought in from doorway and another set comes in from the left-hand side. A little premature.
Continuity mistake: When Charlie Croker breaks into the prison and meets up with Mr. Bridger in the loo, just before they leave, the toilet chain is pulled. It was already swinging.
Other mistake: When the film about planning the job is being shown to Mr. Bridger in the prison: at the end of the film the mafia man walks right up to the camera to watch the English guy walk off. This seems a bit odd, him being able to walk right up to the camera and the camera operator still filming. Wouldn't he have wanted to keep the fact that he was watching them all the time a secret and not give the game away that the mafia were on to them?
Continuity mistake: The Minis at the end are pushed out of the bus with no rear windows, the Aston pushed over the cliff becomes a Lancia at the last moment, and the Lamborgini pushed over the cliff is so toy-like - it doesn't even have an engine... [Regarding the Lancia, the comment is correct. However, it was a deliberate substitution. The Aston went over the cliff and spontaneously burst into flame almost immediately. The director felt that it looked too fake and the Lancia was substituted to make the stunt longer and more realistic.]
Continuity mistake: When we see the computer tape on the tape drive just before it gets to the altered data and messes up the traffic light sequence, the tape is visibly twisted. In the next shot a few seconds later, it is straight again.
Visible crew/equipment: When the three Mini Coopers come out of the sewer and drive towards the coach, you can see 2 people in the coach. "Big William" and Mr. Toms who really drove the coach.
Continuity mistake: The pile of gold on the coach at the end is far greater than all three minis could carry.
Continuity mistake: The camera on top of the coach shows clear glass in the roof windows but in the long shots they are covered white.
Continuity mistake: When the white mini goes over the cliff edge the rear window is already missing.
Revealing mistake: After stealing the Bullion the gang make off through a shopping mall. As the scene changes to show the Minis descending a staircase it can be seen that the door of the front Mini is wide open and the passenger is getting in as the car moves off. It shows that the car was stationary before the start of the shot and not actually descending the stair.
Factual error: At the end on the coach the actual coach is not big enough to accommodate the 3 minis, the mini crews, the coach crew and the mini bus crew and the pile of gold. The first mini is parked right behind the driver and the last is literally touching the back doors also as we've seen not much room either side of the minis there simply isn't enough room.
Plot hole: When the minis drive onto the roof of the leisure centre they are trapped - all the police had to do was block the entry/exit ramp.
Continuity mistake: When the three Minis are driving through a steep turn you see that the chasing police bike overtakes on the inside lane. In the next view from inside the following police car there is no bike in front of or beside the Minis. In the following shot from in front of the Minis looking back the bike is beside the police car behind the Minis.
Continuity mistake: When one of the Minis tries to mount the ramp into the coach it has a bit of silver trim behind the front wheel hanging loose. A few seconds later when it tries again the trim is back in place.
Continuity mistake: When the crooks hijack the bullion van, one of the crooks starts covering the van's windscreen with blue paint. He manages to get two small squirts of paint on the windscreen. However, when the camera cuts to Charlie connecting a cable to the van, at the top of the shot, you can see the whole of the windscreen is covered. Then the camera cuts back and he is still painting.
Continuity mistake: When the Minis are practicing jumping, one of them goes tumbling onto its roof, but the other crashes into another car, denting its wing. Just before the impact, you can see that there is already a dent there where it has obviously already done the same stunt.
Continuity mistake: When the three minis are trying to drive up the ramps onto the coach the shot from outside the cars shows them to be on a two lane road while in the shots from inside the cars they are on a three lane road.
Revealing mistake: When the mafia bulldozer is destroying the three cars on the mountain pass, the red jaguar E type has obviously been replaced with a wreck as it has accident damage on it that wasn't there in previous scenes, and away from where the bulldozer hits it.