Goofs

At 1:19:30, Sarah (the President's wife) gets a call on her cellphone. the caller ID says the call is from Pete Garrison. This is impossible as Pete does not have his cellphone, but is using the phone he lifted off another agent.

The spoiler on the stolen Ford Taurus (driven by Pete Garrison) disappears between scenes.

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.

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.

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.

The President attends the G8 conference in Toronto. Delegates from Korea, China and India can clearly be seen but these nations are members of the G20 not the G8.

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.

A suppressor does not significantly reduce the velocity of a bullet. A suppressor works by redirecting and cooling gases already released from the muzzle of the gun, therefore these gases would not be further propelling the bullet regardless of whether a suppressor is used.

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.

The terrorist leader complains to his contact about the attack on the helicopter via a mobile phone. When he finishes the call a dialling tone is heard, but mobile phone services do not use a dialling tone.

When Keifer Sutherland is checking the toilets (men and women) where Michael Douglas met FLOTUS at the restaurant, he opens the door and determines that it is empty. Unless it is a single occupancy design with a lock on that door and occupied/not occupied sign on it, which these are not, the design would require you to fully enter and see round the corner to ensure it is empty.

When 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.

When traveling to the school, the street signs are black and white. DC street signs are green and white.

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.

When Pete takes a phone call outside the Mayflower Hotel and the caller tells him to go to Massachusetts Avenue, then walk to 12th street, Pete goes the wrong way down Connecticut Avenue. He walks toward L Street. Massachusetts Avenue is in the opposite direction, up Connecticut Avenue.

When approaching the Marine One helicopter, the President salutes the marine at the foot of the steps leading into the helicopter, and the marine returns the salute. This is the complete reverse of what should happen - the marine should salute the President, the Commander-in-Chief, not the other way round.

In some materials for this film, notably the Directv "Cast and Crew", Gloria Reuben's character is listed as "Delores Meriwether". Yet Michael Douglas's character Agent Garrison clearly refers to her as "Nancy". While in still other cast listings, she is listed as simply "Mrs. Meriweather". Clark Johnson who plays her husband is listed, alternatingly, as "Charlie Meriwether" or "Mr. Meriwether".