Continuity mistake: 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. (00:04:35)
Continuity mistake: When Annie is running for the bus, she passes notice boards as such, yet when it cuts to a side shot of Annie at the door to the bus, the massive notice boards have suddenly disappeared and all it is now is bushes and gardens. (00:29:45)
Visible crew/equipment: When the bus is jumping the gap in the bridge, if you look closely in one shot, Sandra Bullock is not driving. Instead it's a large man that appears to be wearing women's attire.
Revealing mistake: As the bus makes the impossible right turn at high speed, you can see the outrigger wheels underneath to stop the bus going over.
Factual error: Near the end of the movie, the villain shoots the operator of the subway car. In all rail transportation situations I am aware of, an operator falling from his seat would immediately cause the train to slow to a controlled stop. It's called the "dead man's switch." Obviously does not happen in this movie.
Continuity mistake: After waving his LAPD badge at Sam and trying to warn him of the bomb on the bus, Jack places it at his side. But in the following shot Jack has instantly got the badge in his hand again, waving it in the air just like before. (00:37:00)
Continuity mistake: The bus hits many cars in the movie, yet there is virtually no damage sustained by the bus throughout.
Other mistake: During the scene where Jack and Annie escape from the bus using the hatch door on the bus floor, they lay on it sideways holding on to each other. If you had a chance to look at the bus from various other camera shots during the film the gap between the undercarriage and the runway was too small for them to do this, the rear bumper also seems to hang lower.
Continuity mistake: 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. (00:44:35)
Continuity mistake: 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. (00:35:30)
Visible crew/equipment: Close to the beginning of the film we see Jack in a coffee shop and his friend walks in. When they both leave and Jack goes to his car, a cameraman is reflected in the car window after the palm tree. (00:26:40)
Continuity mistake: In the first part of the movie, it appears that the building is approximately 53 floors high, we can see this as when Keanu Reeves and Jeff Daniels go to the roof the label on the door is "ROOF/53". However, the service elevator seems to reach the top of the shaft after Dennis Hopper enters level 46 on the control panel. This is rather unfortunate, especially as the security console says that the elevator "serves floors GE-52". I wouldn't like to be in the elevator as it tries to go past level 46 to a higher floor such as 52. (00:21:45)
Other mistake: When Harry has gone to the house of Dennis Hopper, he is able to move around as freely as any other member of the raid team. His limp appears to have disappeared completely, after having changed legs in the bar earlier in the movie.
Visible crew/equipment: In the scene where the bus jumps the gap in the freeway, as the bus lands, the interior camera jerks down and we clearly see the cameraman's brown shoes.
Continuity mistake: When Harry is talking to a police woman at the station, about going through the police files, the woman's bangs are messed up. When the camera pans back to her, every hair is in place.
Continuity mistake: When Jack slows down to break the door of the car, he comes to a complete stop but the very next shot, he is back at normal speed.
Continuity mistake: At the end of the film, the train flies off the track, through a wood-framed tunnel under construction, and then onto a city street. During the credits, as the shot is pulled back, there is no destroyed wood-framed tunnel. In fact, traffic is flowing normally in the background.
Continuity mistake: When Keanu and Jeff are on their way to the building at the start of the film, their car flies over a hill and lands back on the road. The right hand front wheel takes a really nasty knock as it lands and looks ready to come off, and yet in the next shot they arrive safely with no apparent difficulty driving the car. (00:06:00)
Factual error: When Jack is under the bus, he manages to puncture the gas tank by sticking his screwdriver into it. There is no way a simple screwdriver could punch a hole in the solid metal tank, even if Jack took a forceful swing at it like he had when he lost his balance on the trolley.
Continuity mistake: When Howard Payne calls Jack in the bus and is saying he wants his money, etc, at the start of the next scene the bus can be seen with not only its front doors open, but the back doors are also open with a guy standing on the step in the doorway, even though the back doors haven't been opened yet. This shot is actually cut from the following scene, when Jack gets off the bus, the young guy from the bus stands in the doorway looking out at Jack leaving. (01:07:55)
