
Factual error: Towards the end of the movie, two characters finally make it to a Louisiana sheriff's office. The sign out front reads, "Vierge County." There are no counties in Louisiana, only parishes.

Continuity mistake: When Gwen and the police are at the house containing the buried bodies of the victims while Finn and the Grabber are fighting, the Grabber's van is not in the carport. However, when Finn exits the house, and he and Gwen embrace, it is. (01:28:03 - 01:34:27)

Continuity mistake: In the 1978 flashback scene, Michael does not have 6 bullet wounds in his chest from when Dr. Loomis shot him moments earlier.

Plot hole: A core plot point (lifted by the comics) is that Venom needs phenethylamine, and the only way to get it is from brains and from chocolate. Let's just go with it and forget the fact that phenethylamine can be legally purchased as dietary supplement, which would solve every problem. So, Venom gets incredibly angry because Mrs. Chen's shop ran out of chocolates, and *therefore* they need to go raid a chicken plant to eat some chicken brain. Uh, Venom lives in San Francisco. Chocolate is sold everywhere. If Mrs. Chen ran out of it, there are hundreds of stores and vending machines that have it in abundance. The escalation does not make sense.
Suggested correction: The point is he needs to steal it. At Mrs. Chen's shop he gets it for free because he protects her from robbers. Eddie doesn't have the money to buy all the chocolate Venom needs all the time. Stealing some chickens as an alternative is better than trying to shoplift at a different store.
In the rest of the movie Eddie lives in his old apartment constantly in need of repairs, but shows zero serious money problems. He has lavish breakfasts, and he replaces the $2,000 TV the same day. Raiding the chicken place appears riskier than slipping his symbiote in a vending machine or shoplift, especially if it's just temporary - again assuming he's so poor that he literally has no money to eat, which is something the movie should have let us know, instead of pointing to the contrary and making him talk angrily about the need for them to not draw attention.
Not only are the original mistake and Sammo 100% correct, but chocolate isn't exactly expensive. You can get 5 pound bulk orders of melting chocolate on Amazon for like... $25. And that's just a quick 2-second Amazon search. You could probably get it even cheaper elsewhere online. Even if Eddie hypothetically has little money (which doesn't seem to be the case - he has a nicely sized apartment in a major city, new TV, etc.), it's still ridiculous that he couldn't get his hands on chocolate. This is definitely a case of the movie ignoring practicality and reason to manufacture a funny situation.
I agree. There are many other stores that sell candy so all Eddie had to do was to go to one of those instead. Plus, at the end of the first movie, Eddie told Ann that he was going to become an investigative journalist, so he has a new job.
Suggested correction: Which would you rather have phenethylamine, chicken, or chocolate for dinner? That's like saying just because we need food to survive...we should just eat anything or buy our base vitamins and minerals over the counter and from the store.
Sure. How does that have anything to do with the entry? Venom wanted chocolate for dinner and not chicken, supplements to a diet don't mean that you can't eat actual food and the main point was and is that if a store in a metropolis is sold out of chocolate of any kind, there are a dozen other stores in a few blocks' radius who sell it without you having to resort to crime to eat it.

Factual error: There is no way in hell they can carry $200,000,000 in cash (over 4,000lbs), let alone load it on the helicopter.
Suggested correction: They never did and it was never the idea. They simply didn't figure out it's not physically possible. They took as much as they could from the vault in the much more limited time they had, and never got any of it to the helicopter (except for 1 small stack) anyway.
It's true that the team was not meant to recover all the money, but they didn't know that going in. How did Ward and Peters, who seem reasonably smart, not consider the weight when planning the heist? The deal Ward believed was "get paid $50 million to recover $200 million" not "grab what you can and good luck"
I suppose it could be counted as a stupidity, but I'm not sure anyone is really aware of the weight of 200 million in cash, even reasonably smart people. Never seen it, never weighed it.

Factual error: It is not possible to have a conjoined twin of the opposite sex. They are similar to identical twins, which are always of the same sex, in that they are formed from a single zygote. In the case of conjoined twins, the zygote fails to divide normally.
Suggested correction: There are always exceptions to the rules and, although VERY rare, it IS possible for conjoined twins to be - rather, end up being - different sexes. There are about 10 documented cases. In one case, is my understanding the conjoined twins started out as males but a genetic mutation (or something) occurred and one male lost his Y chromosome, thereby developing into a female with no ovaries. (The now-female twin would have so-called Turner Syndrome.) I don't have any sources to quote off-hand.
The male would have lost his Y chromosome after the zygote "split", but he was a monozygotic male.

Continuity mistake: The duct tape placed over the cut on the Janitor's left cheek is inconsistent in appearance many times. Initially, the piece of duct tape torn off the roll has a small piece missing on the lower right-hand corner that isn't there afterwards. Sometimes the lower edge of the duct tape is rippled (wavy), other times it is flush with the skin. (00:23:11 - 00:27:11)

Deliberate mistake: In the pitch dark mansion dining room, the approaching zombie's screams are instantly interrupted by silence whenever the flame from Chris' lighter goes out, and then the screams instantly resume when the light returns. While this is obvious artistic license, for the record the level of darkness would have no bearing on whether we can hear the zombie screaming.

Factual error: When Ed and Lorraine Warren are trying to convince the lawyer to represent Arne, there are is a copy of "Jonathan Strange and Mr. Norrel" on the shelf behind them, which was published in 2004. The film is set in 1981.

Factual error: There is a calendar in a scene towards the end of the movie which shows the date as Wednesday April 30, 2021 but the calendar does not align to the days of a real calendar. That date will be a Friday. (01:25:54)

Other mistake: Rebecca electrocuted the giant sand worm within 3' of the spaceship. After Lt Astrid arrives, some views show Rebecca out in the open, but the camera should have been obstructed by the spaceship because following front views still show Rebecca next to the spaceship. Also, at least part of the dead giant sand worm probably should have been visible at times but was not. (00:51:55 - 00:52:20)

Other mistake: At the Night Driver gallery showing, Haley is reading from a program that describes Anthony's "Say My Name" piece. The text states that Helen Lyle died from "self-emulation" instead of "self-immolation", immolation meaning death by fire.

Revealing mistake: At Wendy's 50th birthday party, the helium balloons did not move, even when her daughter Liz walked next to some of them while carrying a birthday cake with lit candles. (00:01:44)

Continuity mistake: The dead rabbit was thrown onto its left side with its back almost parallel to the table's edge (width) and its nose/head almost in the corner. There was a bowl of several brown eggs several inches away from the rabbit's stomach. When the camera shifts, the rabbit's head has shifted at an angle away from the corner, its rear feet are slightly hanging over the table's edge (length), the bowl of eggs is touching the rabbit's stomach, and the eggs are piled on the opposite side of the bowl. (00:05:35)

Continuity mistake: When Sami was having car problems, her bangs were mostly messy and longer, but suddenly neatly combed straight down a few times, such as after she slammed the hood shut, saw a shadow, and quickly turned around. (00:30:10)

Other mistake: Blood gushed out of the bound man's lower inner arms that were slit with a knife from below the elbow to the wrist (then turned toward the ground). A switch to an aerial view showed no additional blood dripping (while he was still alive). Also, blood would not pour out of his arms to the ground in a horizontal stream like it did. (00:02:04 - 00:02:27)

Continuity mistake: Although the amount of alcohol remaining in the bottle had been slightly reduced, the reduction was too negligible to have filled the Game Master's glass to the level shown after his telephone call to Sienna. (00:06:57 - 00:08:46)

Factual error: Charlie gives Kaz a flare gun to shoot a shark in the mouth underwater. She manages to fire it underwater and the flare travels several meters. It is impossible for a flare gun to activate underwater. And if the flare was fired into the water it will only travel one or two feet. (01:13:00 - 01:18:00)

Continuity mistake: Before opening the door, the "M" on Eric's letter jacket is on his right lapel but on the left when he enters the room, as well as when he exits. (This is separate from the "M" being on his right lapel but on the left when facing the mirror). (00:40:09)

Revealing mistake: The possessed "Helen" that Fr Daniel threw to the ground by grabbing the back of her hair landed like a stuffed doll, not person. The "body" was mostly padding and the fake "Helen" kind of bounced or teetered after hitting the ground. Also, her arms stayed hidden in front of her whereas a real person would be stretching out or moving arms to try to land as safely as possible. (00:21:35)