Revealing mistake: In the final shootout scene, when Rambo takes over the truck mounted machine gun, he shoots the driver, whose blood splatters a lot over the metal guards on the gun. If the blood splattered that much on the guards, it should be all over the interior of the truck which is revealed to only have blood on the floor - none all over the dash or doors.
Factual error: After the boat has blown up and sunk, Ben swims over to it and checks it out, very little to anything is even a little charred, with that big of an explosion everything would be burnt, and black.
Factual error: At the end we see a soldier replacing the canister that the Zyklon B is kept in. However, he is not wearing an SS badge as all SS soldiers did. Zyklon B was only handled by members of the SS, as no other unit had authorisation to carry the sensitive stuff. (01:28:00)
Other mistake: When Dennis Quaid fires his SIG-Sauer P229 pistol on the bad guys under the over-pass, he fires 28 shots from a 10-12 round pistol without reloading.
Factual error: We see Jason Statham walking into a shop in 1971 which has a Visa/Barclaycard logo on the door. Only problem with that is that the name Visa wasn't brought in until 1977.
Factual error: There is no possible way to cause a power line to drop from its support pylons and hit a person on target. These wires are fastened extremely securely, designed to withstand extremely high tension through all kinds of weather, and they are not equipped with some sort of explosive charges to release them.
Plot hole: The FBI in the movie has the ability to "blackhole" an IP address, which makes that computer unavailable to the internet. If they can blackhole the computer acting as the web server, they could also blackhole the computer acting as the name server (DNS), thereby taking down the web site and preventing additional users from connecting.
Continuity mistake: When the bus crashes, the aerial shot shows no garbage by the rear door. In the next angle it's full of trash.
Revealing mistake: When it shows the video of Tom Cruise on Youtube, on the right side of the screen, the descriptions of the other videos repeat themselves.
Factual error: Walt's medical records contain an error - on the left side of the folder, his address is listed as "Detroit, CA" and it's correctly listed as "Detroit, MI" on the right side, although as pointed out in another entry, the house number is completely wrong in the medical records.
Character mistake: Jeff mentions Mathias could have septicemia which he says is "a bacterial infection usually in the bone" However as a medical student he should know that septicemia means blood infection and has nothing to do with the bone.
Other mistake: Even though the building is said to not have power and the guards have to use flashlights, the first time Keiffer goes in the basement he is able to flick the switch and turn on the lights.
Plot hole: At the end, when Chris finds the informant's phone, he sees that there are 2 voicemail messages. Instead of listening to them, he calls the last number, which reveals Abel is responsible for the break-in when he answers and in turn reveals to Abel that Chris knows about the break-in. It would make more sense to just listen to the voicemails, as Chris became immediately suspicious when he saw them. Considering Chris called the last number, he must have known that the last number was also the person who left the voicemails. Very deliberately done to bring realizations between Chris and Abel for a climax.
Visible crew/equipment: When 14k's navigator is killed by the Dreadnought's wheel spikes, it shreads the car's bodywork. When the camera zooms in on 14 through this hole, the camera shadow can be seen next to the hole. (01:13:00)
Factual error: Shortly after David and Griffin jump to Japan, Griffin goes to a car dealership and takes a Mercedes. Griffin then drives on the right side of the street rather than on the left as he should in Japan.
Audio problem: During a scene where Donna is exiting her hotel room, she runs into Clair and both scream. However, Clair's scream cannot be heard, but an odd screeching sound is played in place of her scream, which continues even after her mouth has been closed.
Factual error: The electrical power grid fails, depicted by a series of shots of city blackouts and equipment shutdowns. When the power goes out, the lights of an oil refinery go out as well as the flare. In actuality the exact opposite happens to a flare when powered equipment such as compressors and cooling devices fail simultaneously. The flare is not an electrically powered device and is designed to stay lit during power outages. All excess pressure is immediately vented to the flare stack within a second, causing an enormous flame and smoke cloud that will be visible for several miles.
Factual error: When you see the blind Syndey walk through her appartment she keeps touching the walls to feel where she is. A person who has been blind for over 20 years (as is mentioned in the film) knows the way around their own home. They know preciseley how many steps it is from room to room. They wouldn't keep touching the wall like this.
Visible crew/equipment: When the subway train with Annie and Will departs (the train goes to the right side of the screen), there's a close-up of the train. Then, in the lower right corner (during two seconds) you can see a camera, a cameraman and two crew members next to it, reflected on the windows and the shiny surface. (00:46:00)
Continuity mistake: As Ben and Jane drive down the road, it is raining. After they hit the ghost, the scene fades to black. When the scene fades back in, it's heavily snowing, and a previously nonexistent thick sheet of snow is covering the ground. As they get out of the car, they start talking. During their conversation, there is a quick cut, and with this, it instantly stops snowing.