Corrected entry: When Somerset and Mills go to the safety house to show the lawyer's wife the pictures of the crime scene, Mills arrives there completely wet, but Somerset is absolutely dry. Both of them got there walking.
Corrected entry: When the head of Brad Pitts wife is delivered in a box there is a brief view of black curls in the box but Pitts wife has straight blonde hair.
Corrected entry: In the scene where Morgan freeman and Brad Pitt are talking about life and people in the big city Morgan tells Brad that he "can't afford to be that naive". On the region 2 DVD copy I have by 'Entertainment In Video', spine catalogue no. EDV 9008 the subtitles for that scene have been spelt incorrectly. The subtitles say 'can't afford to be this nave'. A nave is something to do with knights in armour or it would be if it started with a K. (01:26:15)
Corrected entry: When Somerset and Mills are in Mills' apartment going over the crime scene photos of the greed victim, Somerset states that attrition is when you feel remorse for a sin but not because you love God. Attrition is the act of thinning out the numbers of a group in order to achieve victory over them. The word Somerset was looking for is "contrition" (or "imperfect contrition" if you want to get technical).
Corrected entry: In the scene where Brad Pitt is chasing John Doe through the building he comes to a window and looks out to see John Doe pointing a gun at him. John Doe fires the gun at the window several times. If you look to the left of him when he's firing you will see a flock of pigeons walking around on top of the air-conditioning duct. These would almost certainly have flown away at the sound of gun fire. (01:10:45)
Corrected entry: When Kevin Spacey arrives at the police station in the taxi, once inside the station he is covered in blood from having cut the tips of his fingers. There isn't a drop on the taxi, nor does there seem to be a problem when he pays the taxidriver (although this isn't visible, you can assume his money should be heavily bloodstained).
Corrected entry: When Somerset visits Mills' apartment, a subway train passes very close by and everything starts shaking. Somerset explains how they were tricked by the real estate agent. But this obviously takes place after they have had dinner, and thus Somerset must have been in the apartment for quite a while - they must have already had trains passing and that conversation already.