Revealing mistake: When Sam phones his car, as he and Kate are hiding in Talbot's apartment, it is discovered that the two people sitting in Sam's car have been killed by the Watchmaker. One of the dead bodies is shown blinking in the shot.
Continuity mistake: After the opening scene in the Middle East, the scene cuts to an overview shot of London fading towards the U.S. Embassy. As the scene starts, the time on Big Ben is 3:05, but when the camera reaches the U.S. Embassy, the time read on the description at the bottom reads 8:15.
