Factual error: In all the scene setting shots of downtown Portland there are always sirens wailing and car horns blaring to make it sound like a big city. Portland just doesn't sound like that. (01:06:00)
Other mistake: Once dropped off by the FBI helicopter Tommy Lee vomits and says he is afraid of heights and hates to fly. After Del Toro is detained and on the way to the tunnel, Tommy Lee claims he doesn't like flying and has an 8 hr drive back to his cabin. Next scene is him waiting in a airport presumably for a flight when he hears the report of the truck roll over.
Continuity mistake: When the FBI agent tries to persuade Bonham to help with the deer hunter case he puts some material in a briefcase on the table in front of him. Bonham refuses and pushes the briefcase back, the agent insists and puts it in front of Bonham again, but a wider shot shows it still lying right in front of the agent. (00:19:35)
Continuity mistake: When Benicio Del Toro is questioned by the lady after he was caught for the first time, she is sitting at the right from him. The next shot she's sitting at the left. It can't be a reflection issue - both times we see Abby Durrell on Hallam's right or left we also see reflections of Van Zandt and Bonham in the window, indicating that both times we look THROUGH the one-way mirror. Van Zandt and Bonham wouldn't be visible in a reflection inside the interrogation room. (00:33:40)
Continuity mistake: Shortly before Hallam leaves the basement he is seen running along in a black shirt and without a helmet, with Bonham on his heels. From one shot to the next he is wearing a thick brown jacket and a red helmet, not anything he would put on running along to facilitate his escape. (01:02:30)
