Factual error: After crashing headfirst into the water, the airplane is not damaged "correctly" at the end of the movie. The front shows little damage, when it should be crushed and the back has come apart, despite taking the least amount of impact from the hit.

Factual error: When the plane crashes into the water, both men in it should have flown towards the front of plane due to the sudden deceleration.

Revealing: During the garage fight seem towards the end, we see that the steel pole that Frank uses to beat up the bad guys bends while he uses it.

Continuity: The Audi car is missing its W12 logo in the grill in one shot. In different scenes with the Audi, there are two different number plates at the front (at least where the number plate were supposed to be: one with two "holes" at the lower end, and one without. Obvious that there were 2 different cars used.

Continuity: When Franks Audi does the big jump from the top of the car park, it lands and you can see the front of the car get damaged, yet in later shots the damage has gone.

Deliberate "mistake": When Frank is fighting in the doctors surgery, both he and one of his attackers easily get thrown through walls, yet Lola's shots later don't penetrate to hit Frank when he's hiding in the storage cupboard.

Continuity: When Lola is in Frank's car she originally didn't have her seat belt on. Then the next shot she has her seat belt on. In the following shot, she is actually seen putting her seat belt on.

Revealing: Near the end of the movie, the car is driving up to the business aircraft as it is taking off. In one of the flashes of the aircraft, the engine reverse thrusters are engaged. This only occurs on landing. They must have filmed the scene in both takeoff and landing phases of flight, only intending it to look like the plane was taking off.

Other: When Frank shows up at Audrey's house, the cops are patrolling the grounds for security reasons. One cop sees that a glass pane in the french door has been smashed, to allow an intruder to unlock the door from the inside. But when the cop opens the door, we see that there is no lock, or even a latch, on the door.

Deliberate "mistake": In the doctors surgery, Frank protects himself with a door from Lolas shots, yet the bullets don't penetrate the thin plywood door. It can't be a fire door because you can see inside the door through the holes made by the bullets.

Continuity: When Frank picks up Jack at the beginning of the movie, Jack is seen leaving the school. Right before the shot, where the kids touch Franks car, Jack is carrying his schoolbag over his right shoulder. When he opens the car door, he is carrying it on both shoulders.

Continuity: In the scene where Frank's fighting the guards with the fire hose, one of the last guys to attack him (in a red shirt) runs up very close to the Frank, who then backs away maybe 5 feet. In the next shot that same person with the red shirt is now about 15 feet away and charging toward Frank.

Continuity: When Frank does the big jump from the car park roof and lands, the bomb under the car should have been torn off.

Continuity: At the doctor's office, Lola shoots up a police car, damaging the passenger doors, and destroying the light bar on top, then steals the car. When arriving at Audrey's house, to get into Frank's car and kidnap the kid, the police car she is driving has an intact light bar on top. When Frank leaves the driveway, and accelerates away, the police car is hit, but once again the light bar is shot up, and there are bullet holes in the passenger side doors.

Continuity: In the beginning, when the hoodlums are trying to steal Frank's car, in one shot the man getting into the driver's seat is standing outside the car, but in the next shot he is already getting inside, and about to close the door.

Continuity: During the final battle, after Frank and the bad guy roll around the plane the first time, Frank pins him against the wall and punches him. But in one shot his hands flip and he is hitting him with the opposite that he was in the previous shot.

Revealing: When Lola shoots the police helicopter, it is a noticeably poor visual effects job: the flames appear to merely be superimposed onto the helicopter, and it doesn't look as if the helicopter actually exploded.

Continuity: When Lola kills the receptionist and doctor at the office, you can quickly see her bullets hit the window behind the doctor (at the end of the hallway) cracking the window up. Yet, in the next scene, when Frank is walking around, the window is not damaged at all.

Revealing: As Frank is looking at the effects of the virus, a guy jumps him and pulls him through a window. You can tell by the way that they both land that they are jumping onto a covered airbag.

Revealing: When Frank is pushing Gianni out of the sinking plane at the end of the movie, the surface of the water can be seen, along with the reflection of Gianni's head on it. Since they are supposed to be pretty deep, this can only mean they're in a water tank.