Factual errors: When Agent Marin describes how a downed agent's gun still had the safety activated, she is referring to a Secret Service issue Sig-Sauer P229, which has no safety lever to deactivate. It instead has a decocker, which increases the length and pressure of the trigger pull but does not prevent the weapon from being fired. Typically, the weapon is carried in the holster decocked, and the agent would fire the first round double-action, followed by single action for successive shots.
Continuity: The spoiler on the stolen Ford Taurus (driven by Pete Garrison) disappears between scenes.
Continuity: In the first shot when the presidential helicopter "Marine One" gets hit by the missile, you see the missile and its smoke trail. In the following shot where the helicopter explodes, the smoke trail of the missile is gone.
Continuity: When Agent Garrison is at the house of murdered agent Charlie Merriweather, the widow points out a red Cadillac suspiciously parked outside her house. When the red Cadillac leaves the left upper tail light is burnt out. In the next scene when Agent Garrison is following the vehicle, the left tail light is functioning properly.
Errors in geography: Pete Garrison is hiding behind a green WM (Waste Management) trash bin in the first chase scene. The registration number is visible on the trash bin and it starts with "CA", indicating it was distributed in Canada, not Washington DC where the movie is supposed to take place.
Continuity: When Garrison arrives at the White House after the coffee shop and is asked where he was, he states that the departure isn't scheduled until the next day. Later when being questioned in his apartment, he states that it was only moved up 2 hours.
Errors in geography: When traveling to the school, the street signs are black and white. DC street signs are green and white.
Continuity: In the scene when Garrison is being chased by Breckinridge towards the out-of-commission ship, the camera zooms in on Breckinridge's foot stepping in a puddle before it changes cameras to see Garrison inside the ship. Once he gets inside, Breckinridge descends a flight of stairs and the camera does the same zoom on his feet again, but his shoes and pants are perfectly clean.
Crew or equipment visible: In the scene where Pete Garrisson is being followed after sitting in the café, a pan shot of one of the followers reveals a portion of camera equipment and crew member in the reflective glass of a building.
Factual errors: Pete Garrison's national security adviser requests a list of personnel with "Q" clearances. Q clearances are granted strictly by the Department of Energy and are the equivalent to other agency's Top Secret clearance. Instead of dealing with encryption as the national security adviser mentions Q-cleared employees deal with nuclear power and weapon capabilities.
Continuity: In the scene where Jill Marin shows her identification to the security camera and walks through the doors to the reception desk of David Breckinridge's office. The door she opened and walked through stays open behind her but on the security monitor you see the door closing as she passes through. In the next scene the door is closed.
Factual errors: When the helicopter is shot down, they are using the call sign "Marine One". The helicopter would only have this call sign if the president was on it. When the president deplanes, the helicopter's call sign would be its standard registered call sign.
Factual errors: The rear passenger doors on the 2006 Cadillac DTS presidential limousine are not as far back as the ones on the limousine portrayed in the movie. On the real presidential limousine, the doors are located at the third window from the front, not the fourth.
Factual errors: The standard sidearm of the Secret Service is the SIG Sauer P229 chambered for .357 SIG rounds. The sidearms used in the movie by the agents are clearly SIG Sauer P228s, which are only available chambered in 9mm rounds.
Continuity: In the first exterior scenes where Marin and Breckenridge arrive to investigate the murder, she's wearing a tight low-cut black shirt under her jacket; when she comes out of the same house in a later scene (same point in the narrative, during the initial investigation) she's wearing a loose-fitting striped collared shirt under her jacket.