Other mistake: In Moriarty's college study, the white King and Queen chess pieces are actually on the wrong squares. Queen starts on her own color.
Other mistake: Jill's shoulder seems to be perfectly fine when fighting with Sydney, even though she stabbed her shoulder earlier. (01:38:00 - 01:40:00)
Suggested correction: Anger and fear can be more than enough to gather enough strength to fight your way out of a difficult situation regardless of how much of a critical condition you are in.
Other mistake: While Dennis is editing one of the video tapes, there's one on a table labeled "89" even though the film takes place in 1988.
Other mistake: There's no way the tip of a mast is strong enough to support an entire swinging ship, even if the latter one is a lot smaller. (01:00:00)
Other mistake: In the scene where Lisbeth gets off her bike before going up for her meeting with Dirch Frode and his associate, if you look at her helmet quickly as she's taking it off, her mohawk is perfectly intact, showing no sign of being squashed by her crash helmet. (00:06:15)
Other mistake: In the scene near the start as Will Atenton is being driven to his house by the property agent there is a close up of the car which shows a snow covered bonnet therefore the car would not have been driven very far as the engine was not warm.
Other mistake: When Eddie leaves his soon-to-be murdered friend's apartment, the apartment door automatically closes behind him. However, when Eddie returns, the door is ajar. It wouldn't be ajar if it were an automatically closing door.
Other mistake: When Martin Harris is being chased in the taxi, paint covers the entire screen. Martin asks for the wipers to be switched on, but by the time the taxi crashes, the windscreen is completely clean, with no sign of the paint. There would be wiper marks and the remaining paint on the windscreen.
Other mistake: A colleague approaches Ben, picks up a newspaper, and tries to pronounce Volkskrant. Ben gives the correct pronunciation, tells him it's a Dutch newspaper. However, the top of the newspaper is visible and says Trouw, a different Dutch newspaper. (00:40:00 - 00:43:00)
Other mistake: Anna's birthday is in January, making her an Aquarius or Capricorn. Yet she's shown looking up her horoscope under Taurus which is for April-May.
Other mistake: Spoiler alert! At the end, when the sniper shoots the killer, Eve says he is 800 yards away, but within the next 30 seconds he appears at the scene. (01:22:02 - 01:22:32)
Other mistake: In the hospital, Barrett had his right arm in a sling and his lower left leg in a cast. When the police/ detectives were trying to find Barrett, one detective said Barrett could not have driven himself somewhere because he had "a cast on his leg." The cast was on the left leg, so Barrett could have driven using his right leg, as usual. Maybe he couldn't have driven with a cast on his right arm, but the detective gave the wrong location of the leg cast. (00:50:30 - 01:13:45)