Continuity: When Benicio Del Toro is smashing into all the cars in the traffic jam, he does some major damage to the hood. Later, when investigators examine the abandoned car, the hood isn't bent or damaged at all.

Continuity: When Tommy Lee Jones is reading the letter at the end of the movie, there is no signs of scar tissue on his hand, even tough he was cut there during his last fight with Benicio Del Toro.

Factual error: Lots of liberties are taken with the geography of downtown Portland. For example, at one point Bonham is standing on a fountain looking around and, from his point of view, you see two MAX trains on a slope going past a parking lot. Those two points are about a mile apart and there is definitely not line of sight between them because most of downtown Portland is in the way.

Plot hole: Why does Hallam go down a horrifying, absolutely deadly waterfall only to climb back up again?

Continuity: In the car chase scene, when Del Toro gets stuck in traffic, the car behind him stops just a few centimeters before. But when he decides to make room using his car, suddenly the car behind him is a few feet back, providing him with adequate space to drive in reverse

Continuity: Hallam escapes into a huge construction site. The bulldozers and concrete trucks indicate that foundation work has just started. When Bonham climbs down a stepladder he gets into a movie-typical industrial basement with pipes and valves where the utilities are still connected, as we can tell from the burning lights and the stereotype steam leaks.

Continuity: As Aaron Hallam is leaving his girlfriend's house, he steals her car and races off as fast as possible. He easily passes LT Bonham. However a moment later LT is even with the car again.

Continuity: In the short aerial shot of Hallam and Bonham climbing up the bridge there is no train on the bridge below them.

Continuity: In the scene where they visit the girlfriend, Connie Nielsen has straightened her hair and changed her clothes. Suddenly they are in the girlfriend's attic looking at the safe that was just mentioned in a previous scene, and she has wet curly hair and a wet-shirt on.

Continuity: Near the end, when Tommy Lee Jones is hanging upside-down over the raging river, he pulls the wooden stake out of his leg. Blood starts gushing out and it leaves a pretty big hole in his thigh. Yet during his end fight with Del Toro, there is no marks on either thigh.

Continuity: When Tommy Lee Jones is pursuing Benicio Del Toro under the city his shirt is wet almost all the way to his trousers, when he gets out of the hole its wet only on the top of his back

Factual error: When Hallam is trying to get on the train, the policeman says the subject is on the Hawthorne Bridge. The MAX light railway doesn't go over that bridge, it goes over the Steel Bridge.

Revealing: In the scene where the two "deer" hunters are shooting at Del Toro, the report of the rifles is wrong. The report they use in the movie is for a semi-automatic weapon; you can hear the mechanical clang at the end. These hunters were shooting bolt action rifles.

Continuity: The colouring of the wolf's paw varies. When Tommy Lee Jones is tracking it, the paw is black. When the snare is being removed, it is pink with blood, and when the wolf is finally running away, the paw is white.

Revealing: When Aaron cuts the first deer hunter's cheek there is no slash but only a smear of 'blood'.

Continuity: When Bonham follows Hallam down the river he is seen walking on the right bank. In the next shot he is walking on the left bank. (One could assume that he is going back and forth, but that would be very counterproductive on the hunt for someone who is swimming down a fast-flowing river).

Continuity: When Bonham steps into Hallam's trap and goes down the cliff doing a bungee jump there are huge trees right next to the trap. Seen from below there are no trees.

Continuity: The letter giving the Department of Defense jurisdiction over Hallam is dated March 5 2001. The caption about 12 minutes into the film ("Silver Falls, Oregon, 2003") sets it in 2003.

Revealing: Towards the beginning of the movie, there are several shots of winter wilderness, one with a soaring eagle. If you look closely, you see that this particular eagle has tethers hanging off of its feet. This was not a bird found in nature. This was a trained bird brought in for this shot.

Audio problem: During the first fight between Bonham and Hallam you see from their faces that the moaning has been dubbed in later.