Continuity: After Keanu commandeers the civilian's car, breaks off the door and jumps to the bus the civilian loses control and heads for the water barrels in front of the divider. Right before he hits you can already see water all over his windshield.

Continuity: When the subway carriage bursts out into the street, Annie's handcuffs slide off the broken pole and in slow motion you can see the pole is shorter than all others. Besides, all the other poles in the carriage are intact.

Visible crew/equipment: The first bus explodes, and the traffic on the road mysteriously disappears. If you look down the road, there are construction barriers blocking off the entire road, which would not allow any cars to drive through.

Visible crew/equipment: In the scene where Jack is taking off the handcuffs of the guy who shot Sam, you can see the top of a bald crew member's head with headphones on behind them.

Factual error: In the scene where Keanu Reeves attempts to stop the subway train, he accelerates the train by pushing the handle forward. In the LA Transit System, the train is stopped by pushing the handle forward.

Revealing: At the end, when the empty bus rams the freight plane, the wire pulling the bus can be seen.

Plot hole: If Jack can speed the train up, why does he not try to slow it down? Even if it can't be stopped completely, using the speed lever to reduce it to the minimum possible would be a sensible course of action. There is nothing to suggest he wouldn't be able to do this as he is able to increase the speed without any trouble. If there was something to show that slowing down the train would be unworkable it would make sense, but seems to more serve as a plot device.

Continuity: At the start when Jack is trying to get on the runaway bus, he is seen passing the guy in the convertible Jaguar on the freeway entrance-ramp. He continues to overtake lines of stationary traffic in order to catch the bus, and then pulls alongside it. In the next shot he commandeers the Jaguar so he can use it to get onto the bus; however the Jaguar should still be waiting in the queues some way behind.

Continuity: During the scene where the bus takes the really sharp curve it kind of goes over on two wheels - if you look closely, you can see some sort of lift under the bus obviously causing it to tilt so far sideways.

Audio problem: When Annie asks Jack what the plan is, he says something like, "Stay above 50," and we hear Annie reply, "Nice plan," but her lips don't move.

Continuity: After the bus driver looks at the note "Bomb on Bus" he starts decreasing speed. So Keanu puts the Jaguar beside the bus and tells the bus driver to open the door for him to tell the driver to go at a speed of 50 miles per hour. Just before this you can see a camera shot in which the door is already open. This mistake is easily seen if you watch it in slow motion.

Revealing: In the scene where Payne is waiting for the money to be dropped into the bin, he looks through the blinds out onto the street. When he lifts up the blind with his 'bad' hand, you can see his fingers and thumb taped up out of the way.

Revealing: In the scene where Jack and Annie escape from beneath the bus via a trap door, the shot of them skidding across the runway shows a ring on Jack's left hand as it is wrapped around Annie. Jack is not married in the movie, but his stunt double must be.

Visible crew/equipment: In the scene where the bus is exiting the highway on that sharp curve there's a medium shot showing the bus from the driver side. Look closely at the driver, it's either a really ugly woman or that's a man in a wig driving the bus.

Factual error: When the terrorist's first target, the elevator, first has its cables blown, it goes into free-fall for about 7 floors before the brakes kick in. That is about a 100 foot free fall, and not one person even falls down afterward. Are we to believe that around 5 seconds of negative G does not even result in a single person ending up on their rear?

Continuity: Jeff Daniels' character gets shot in the thigh by his partner. Later, when he gets his award, it is the opposite leg that has a cast on it.

Continuity: When Annie drives onto the shoulder, after Jack has come out from investigating the bomb underneath, the bus crashes into a car on a tow truck. In the first shot the tow truck is well inside the white line on the road and it looks like it's half on the grass as well. In the following shot when the bus hits the car, the tow truck has moved to its left and is now on the white line on the road.

Continuity: When Jack is in "Tuneman's" car, driving alongside the bus, when Jack holds his badge up to the driver, he is holding it at the top, but in the following shot he is now holding it at the bottom.

Continuity: At the beginning, when the employees are getting into the elevator, there is a close view of the man at the front pushing the button with his finger, but when it cuts to a wider shot, he is taking his thumb away from the button, instead of his finger.

Continuity: When Jack and Harry are on the top of the building at the start, Jack climbs up a ladder and proceeds to walk along to the crane. In one shot he moves the big gun round to his back, and in the following shot the big gun is still in front of him.