Other mistake: Several close-ups of the business cards of Patrick Bateman and his associates reveal a misspelling of the word "Acquisitions" (the "c" is missing - not a small error, given that this is the name of their department). (00:18:35)
Suggested correction: The business cards seen in that scene are supposed to be bad. An expert on business cards once reviewed the scene for a YouTube video and pointed out many aesthetic flaws in them, including this one. The subtle joke is that Patrick and his friends are all pretentious and deluded, thinking they're masters of style while they can't even spell words right. This is more explicit in the book, where paying close attention to the clothing Bateman describes, people's outfits make no sense.
Revealing mistake: When Patrick opens his fridge to offer Jean some sorbet, you can see the decapitated head of a woman in the fridge. If you pay close attention, you can see the head is moving a little. (00:59:36)
Suggested correction: It's a prop head resting on a freezer shelf. It could simply be that opening the freezer door causes the head to sway a little, similar to if you had an egg, lemon, or something else that didn't have a flat bottom resting on a shelf inside a fridge.
No, the way it was filmed was with the actual actress putting her head up through a hole in shelf. It's her head moving.
Other mistake: When Jean looks at Patrick's increasingly twisted designs, it turns out that he drew a woman with a chainsaw stuck in her back on November 13th. That does not appear to make sense by the most basic movie inner logic (even if we discount any real-life reference to the year), considering he murdered Paul on December 20th and his descent into madness isn't supposed to be a slow one. (01:34:00)
Suggested correction: Just because he doodled the chainsaw on a specific date doesn't mean he killed her on that date.
It would have been quite strange if he just happened to draw a prediction of the murder months earlier, and it wouldn't make sense that he would keep a normal diary until September, then go crazy for months after but keep doodling in November of an old diary that he should have already filled (the movie is supposed to be well into the new year) but only from a certain point and in a crescendo. Julia... ahem, Jean didn't just find a scrapbook of insanity; she found the diary of his increasing spiral into insanity.
Revealing mistake: Throughout the whole movie in the scenes at the office, if you look out the window you can easily tell that the city view is a backdrop. The perspective is all screwed up. (00:08:50)
Suggested correction: The overwhelming suggestion at the end of the movie is that the whole episode has taken place in the head of a solipsistic, self-regarding yuppie: Patrick Bateman (though none the less entertaining for that). 'Mistakes' such as this one simply illustrate the unreality of the situation.
Other mistake: When Bateman has just killed Paul Allen and is dragging him out of the building you can see the trail of blood on the floor where the bag is leaking. When he walks out the front door to the cab suddenly the bag is not leaking anymore. There is no trail of blood. (00:29:50)
Suggested correction: That I believe is intentional. In the end of the movie, it becomes very questionable whether Bateman really did kill anyone at all. So in this case, if he did not kill Paul Allen, there couldn't have been a real trail of blood, just the one in his mind. Also, Louis Carruthers only noticed the overnight bag when Patrick was loading in into the cab's trunk and not that it contained something; the same goes for the security guard at Bateman's condo, who didn't take any notice of the bag, nor the trail.
We can certainly 'believe' it is intentional, like other subtle and not-so-subtle absurdities, but the movie does not characterise it as a specific, explicit hallucination of Patrick, so I think it would be better to have it in the 'main' section of the mistakes. Otherwise, just about any continuity discrepancy can be written off as Patrick just being a schizo and seeing things that are not there. In fact, in the director's commentary, she says that they wanted the doorman to ignore it, and she speaks of it as if the doorman is oblivious and "uninterested," I think is the word she used. So for what it's worth, it's supposed to be real.
Character mistake: Near the beginning of the film Bateman is at the bar where he says some nasty things to the woman bartender. He orders Stoli on the rocks but when the she brings him the drinks they don't have ice in them. (00:04:50)
Suggested correction: Maybe the bartender didn't like Bateman and gave him drinks that she messed up on purpose. Bateman might not have noticed because he was getting off on his "fantasy".
