Continuity: When Jack is pulled over with the Stranger, the windshield is covered in salt, but in his flashbacks, it is clear.
Continuity: When Jack is picked up by the Stranger, he speaks to him through the passenger side window, but when he gets into the car, the window is closed.
Continuity: The tape over Jack's mouth changes size and placement.
Anachronisms: In the war footage shown at the beginning of the film, one of the shots includes a B-1B bomber dropping conventional bombs. Although the B-1 was qualified for these weapons, all heavy bombing missions during Operation Desert Storm were carried out by B-52s.
Anachronisms: Footage and audio in the title sequence is taken from Apache gunship footage from the Iraq War, not Gulf I.
Factual errors: Regulation U.S. military dog tags do not have dates of birth on them.
Continuity: In one scene when Jack is being put into the drawer, the shot shows him being put in head first. The next shot of him inside the drawer, he is in feet first.
Crew or equipment visible: After Jack is looking out the side-view mirror of Jackie's car to find Dr. Becker, he opens the door, and as he does so you can clearly see the cameraman.
Miscellaneous: Bethan Mowat, the Canadian second assistant director's name is misspelled in the movie credits as Maowat.
Continuity: When Jack and Jackie are at the diner, Jack grabs a cigarette and is holding it in one hand and the next shot from a different angle he has a lighter in the same hand. Then next shot from another angle he has the cigarette again and it is lit. However, in the next shot he lights the cigarette.
Continuity: At the first interview of Jack with Dr. Lorenson, the clothes of Jack appear opened, then closed and opened again.
Factual errors: Early in the movie the female Corpsman/Medic says, referring to Jack, "This Soldier is alive." In modern US military language, a "Soldier" is a member of the US Army (just as a "Sailor" would be in the Navy, an "Airman" in the Air Force, or a "Marine" in the Marine Corps). Yet Jack Stark is clearly a Marine, as his dog tags show, reading "USMC" for US Marine Corps. US Marines are never called "Soldiers." Also, the other Corpsman mentions that Jack's fuller biographical details will be sorted out later at the "Naval Hospital," the place well out of the combat zone where wounded or dead Marines and Sailors would be sent but not Soldiers or Airmen.
Continuity: Around the beginning, where he meets the young girl with her mother, he puts the scarf around her neck, and it disappears throughout the scene.