Other mistake: When they hit the deer, the passenger side mirror and lower quarter panel was damaged, when the deer not only came from the other direction, but also seemed to be in the air when it got hit.
Other mistake: To stop herself from bleeding after removing the tree branch from her body, Jen heats the wrapper of a beer can and places it against the wound. Later it is revealed that doing this resulted in the logo being branded onto her skin. However, if the wrapper was placed on her skin and the logo was facing towards her, then the logo should have been mirrored, but it's not. (00:57:40 - 01:05:20)
Other mistake: Where did those spikes above and below the rear door come from? They exceed the height of the door.
Other mistake: The courses on Lucas' grade report are not given numbers or specific titles that would distinguish them from other courses (and levels) within a department. They are listed in general categories: "American History" (a minor distinction), "Calculus", "Chemistry", "English", and "French." A cover page for one of Lucas' assignments shows he was enrolled in "English 301" - still no descriptive title, but at least discernible from "English 101" and "English 201." (00:23:00 - 00:51:54)
Other mistake: Derek changed into Tyler's clothes to escape the hospital and take on Tyler's identity. However, it does not look like he remembered to put his blue hospital ID band onto Tyler's right wrist. Hospital bands are usually securely on and not easily removed (or removable without breaking them). When the nurse was removing Derek's (actually, Tyler's) wrist restraints, there was no blue hospital ID band on his right wrist. He asked, "How do I prove to you who I really am?" (No ID band!). (00:21:30 - 00:24:37)
Other mistake: When Harry Hole gets a call but isn't there to answer, Katrine Bratt picks up the phone and takes a message. Rebecca from Telenor Security tell her they picked up a cellphone signal from a missing person. She tells her the coordinates as Parkway 1, 0139 Oslo. On Katrine Bratt's computer you see the coordinates as Parkway 1, 0350 Oslo. (01:13:15)
Other mistake: During the opening trap we see Mitch strike the blades with his chain and get yanked forward. However, despite being yanked forward he still manages to stand in line with the others which he shouldn't be able to do, as his chain was shorter due to the extra tug he received. (00:06:30)
Suggested correction: The chain is tugged by the saw blade catching it as it is going round, when it gives loose of the chain, the chain is not any shorter than the others, as the saw blade did the tug not the motor pulling the chain in.