Continuity mistake: Just before Angela and Jack sing Moon River, his sunglasses are suddenly on.
Revealing mistake: On the beach, after Jack kills the mugger, he "cuts" himself with a knife to appear heroically injured. As the moon glints over the blade, it is obvious that he is pressing the back of the blade into his palm. (00:26:05)
Factual error: When Angela is leaving to go the Mexico, right after the computers are fixed, you can see some guys in US Army uniforms in the background. They have both officer insignias on their lapels, and NCO insignias on their shoulders. You can only be one or the other.
Continuity mistake: When Angela hits Jack with the fire extinguisher the second time, we see it going over the railing with him, but in the next shot of Jack falling it is nowhere to be seen. In the next overhead shot the extinguisher is already on the ground near where Jack is going to land. (01:43:30)
Continuity mistake: Just before the guy crashes the plane into the towers, he reports his height as 1,300 feet. There is an almost instant look at the console in front of him and you can see the altimeter is saying he's at 700 feet. Whatever the hackers can change (they seem to change his GPS system reading) they cannot change this which relies on sensors mounted in the plane itself.
Factual error: When Angela first gets the disk from Dale, he tells her to click the little icon in the corner and hit control, shift. But then she hits control shift first then clicks the icon. This would be recognized very differently by the computer and generally makes no sense to hit modifier keys after an action.
Factual error: When the police are chasing Angela on the highway, the rain is running straight down their windshield. In reality, raindrops are pushed up over the top of the car by the airstream. In the same way, rain on the side of the car is blown toward the rear, but the shots of Angela driving show the rain running straight down the driver's side window, as it would if the car were sitting still. (01:14:45)
Continuity mistake: The "Ruth Marx" signature on the photocopy is different than the one Angela signed in Mexico.
Other mistake: When Angela arrived at the hospital to see Alan, the nurse behind the nurses station tells her "we have him intubated and pumped full of epinephrine." When Angela enters Alan's hospital room, he is not intubated.
Continuity mistake: In the scene where Angela is entering the computer convention, she pushes past a woman with a curly blonde French twist. In the next shot, the camera zooms out and she pushes past the same woman again.
