Continuity mistake: When Clayton is being recruited Burke grabs a newspaper to circle CIA. The previous scene had only the front page, but when he circles CIA there is a part of the torn paper on the bar as well. (00:06:40)
Continuity mistake: When Burke circles CIA on the newspaper at the bar, the newspaper is folded in half and positioned so Clayton can read it. A scene later the newspaper is not folded in half and it's positioned so Burke can read it. (00:06:45)
Revealing mistake: In one scene it shows them throwing a Molotov Cocktail at some rocks. The rocks burst into flame before the bottle gets there and busts open. (00:22:20)
Continuity mistake: When the boys are playing cards, Burke comes in and you can see that there are a bunch of chips and the deck of cards on the table. The camera angle changes and so do the chips. The cards suddenly jump into Clayton's hands as well. (00:29:55)
Other mistake: Burke told Clayton that Langley's computers don't have printers. However, while Layla sits in Sharon's cubicle, just after Clayton walks by we see a printer behind Sharon on her desk. (01:09:13)
Continuity mistake: When Clayton is hiding behind the SUV a shot from behind shows him peeking his head out to look at Layla. It cuts to a shot from the front where most of his torso is out from behind the SUV. Then another cut to behind shows only his head out again. (01:21:05)
Continuity mistake: In the scene where Layla passes the note to Zack, he has a gray shirt on which is not tucked into his pants. Later, when Clayton is following him the gray shirt cannot be seen. (01:22:20 - 01:23:10)
Continuity mistake: After getting shot, Zack touches the bloody jacket with his left hand. When he dies there's no blood on the fingers he touched it with. (01:25:45)
Other mistake: When Clayton shoots Zack, both the position of the gun and the location of the blood on Zack's jacket are about mid-torso on the left side. Yet not only is Zack shown to die in only 15 seconds, but Clayton does nothing to check pulse, breathing, pupils, or even the wound, which is inconsistent for this trained agent who didn't want to kill his friend; instead, he retrieves a paper from Zack's pocket and flees. (01:25:46 - 01:26:27)
Continuity mistake: While searching Zack's bloody jacket for the note Layla passed Clayton's hand gets bloody. However, after reading the note he puts his hand to his mouth and there is no blood on it. (01:26:00)
Continuity mistake: When Layla is trying to get away from Clayton in the car chase, she goes to pass a blue car behind a white truck. It cuts to a shot from inside her car and the white truck is there, but no blue car. Another car is coming the other direction and she has to yank the wheel. She should have been creamed by the blue car, but wasn't because it disappeared. (01:32:10)
Visible crew/equipment: In the scene where Layla drives her VW through the gate you can see a camera lens (a bright circle) in the passenger seat of Clayton's truck. This is the angle used for a brief moment from his view when she crashes through the gate. (01:32:20)
Character mistake: Before using the handgun, Clayton saw that it had bullets in the magazine. Later, his bullets caused sparks and ricochet sounds from hitting concrete and steel when fighting Zack. After Layla accused him of being a double agent, Clayton challenged Burke to explain what's going on, and deflected most of Burke's lies but then seemed most confused - despite his knowledge to the contrary - by Burke's claim that Zack is alive because Clayton's gun was shooting blanks. (01:37:10 - 01:38:35)
Continuity mistake: When Layla is hooked up to the lie detector that tracks the movement of her eye, she is looking around the room and blinking repeatedly, but the eye on the screen (which is supposed to be hers) never moves or blinks, even though the camera is still on her.
Continuity mistake: When Colin Farrell's truck is chasing the silver VW Bug, the Bug crashes through a gate, sending debris into the truck's windshield, causing a spider-web impact break. In all subsequent shots, the windshield is undamaged.
Factual error: In the movie Burke states that none of the computers has a floppy disk drive so that no information can be copied and smuggled out, but Leila uses a USB device. With all their technology and computer scientists, the CIA, or anyone who is semi-computer knowledgeable should know that information can be copied through the USB port and they would have been secured accordingly.
Continuity mistake: After Clayton says Burke's name to his 'captors' he is shown holding a pair of pants, in the next shot he is not holding them, then the next shot he is again.
Other mistake: Towards the end of the movie, Clayton has two wounds visible on his face. These wounds keep changing length and shape throughout the scene.
Visible crew/equipment: When James gets into Layla's car after forcing it off the road, the boom mic can be seen in the rear side window of Layla's Volkswagen Beetle.
Revealing mistake: In the beginning of the movie when Al Pacino is supposed to be browsing the web you get a quick look at the address bar. It shows the URL to a local .html file instead of a website.
Suggested correction: A good number of mice and keyboards connect to the computers through the USB ports. If they took out all but two ports, and left those for the mouse and keyboard, it could be possible. If Leila pulled out the keyboard plug she could put in the USB device and copy the files. Heck, she could have even opened the computer up herself and installed a hidden USB drive (smuggling in the tools with her coffee mug of course). She would just have to be sneaky about it, and that's nothing unusual for these characters.
Not only is the original "Corrected entry" valid, it's understated. Burke actually said "Langley's computers don't have disk drives" - not just no floppy drive. In a high-security environment, such a system would be configured so that no USB port could communicate with an external drive; even more likely, the workstations would be dumb terminals - just keyboard, mouse, and monitor; and that's exactly what they appear to be in Layla's office area. So, showing a USB port built into Layla's keyboard and communicating with a USB drive belies a major part of Burke's story, and if Layla were able to do that, the system would immediately "see" it. It's the ersatz "Correction" that's mistaken, since it describes only ordinary commercial computer systems.