Continuity: The position of the sun changes in the last scene.
Continuity: When Captain Biggs sits across from Ludlow at Ludlow's desk and begins conversing with him, Biggs' necktie alternates from being outside of his lapel to under it, even though he does not move.
Personale o equipaggiamento visibile: When Ludlow and Diskant are at Grills’ house, just after beating him with the telephone book, someone disappears through a door in the background and in the next shot the door moves and closes. If there was supposed to be someone else in the house someone would have noticed and/or mentioned it...
Factual errors: The giant billboard at the beginning of the movie shows a picture of Korean girls that are missing and have the words "Missing" blazed across the billboard. However, the Korean translation that also appears on the billboard is grossly mistranslated. The billboard reads, in Korean,"No Chi Da" which means "Missed a chance/opportunity" or "let something get away" (like a criminal or a pet). The meaning of the words do not have even a remote connection to kidnapping nor missing persons.