Factual error: Neighbor states: '72 Challenger, 4.9-liter, V8. The '72 Challenger came with a 3.7-liter slant-6, 5.2 and 5.6-liter V8. (00:11:30)
Suggested correction: Sounds like the neighbor is mistaken, which would just be a character mistake. Remember, the car wasn't his. He had just inherited it, recently as Hutch points out. He admittedly didn't even know the correct 0 to 60 time.
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.
Factual error: When Cruella first drives her iconic car, being in Britain the driver's seat should be on the right side, not the left.
Suggested correction: Cars can be imported from overseas. It's very possible the car was imported from America.
Factual error: In the beginning, it's 1989. The crew chief, Michael Rooker, is wearing Mechanix gloves... which didn't come out until the 1991 Daytona 500.
Factual error: Some Freightliner M2 trucks are shown in 1990. That did not come out until 2002. (01:32:56 - 01:35:20)
Factual error: Lady Gaga is painting her toenails listening to some music on her portable cassette player. It's 1978, and walkman-type players were introduced the year after. (00:11:00)
Factual error: The Deputy's identification had "State of Pennsylvania" written on it. Pennsylvania is, of course, a state, but most (if not all) official/ legal documents are marked "Commonwealth of Pennsylvania." (01:17:05)
Factual error: One of the sisters threw a bucket of water over the dock to wash away the blood. Seconds later, the dock was dry. Even with the sun shining, wood does not dry that fast. (00:10:03)
Factual error: At the beginning of Quintet, a modern Manhattan skyline is visible in the distance not a late 1950s skyline. Also, the view is consistent with the Paterson, NJ filming location, not the Upper West Side.
Factual error: When pit bull Shadow was chasing Phoenix, the distances between them varied - even appearing to increase - but the pit bull should have been able to quickly close the gap and catch Phoenix. In general, an adult person (about 7 mph) cannot outrun a pit bull (25-30 mph). Also, unless Shadow was trained to stop pursuing Phoenix if she got over the fence, pit bulls are actually quite good at climbing fences. (00:02:38)
Factual error: When the hackers take out Zagreb, Croatia, one shot shows the effect on a train in a subway station. Zagreb has no subway.
Factual error: Georgia license plates have the county (where issued) at the bottom of the plate, but the plate on Jimmy's truck does not show any county. (00:08:32)
Factual error: After Ressler tells McChesney he wouldn't be surprised if one day she's tracking down sequence killers, McChesney replies, "Not sequence killers. Serial killers. That's what they should be called." But it was Ressler who claimed he coined and is often credited with coining the term "serial killers" (at least in the U.S). ** After showing pictures of some of Bundy's victims, Ressler is shown and it is pointed out, "He [Ressler] is credited with coining the term 'serial killer'." (1:31:30). (00:26:40)
Factual error: Unless left in the vehicle (not the case here), towed impounded vehicles do not have keys. Moreover, lacking keys, a valid registration, possibly proof of insurance, and new plates, vehicles bought at a NYPD auction are to be TOWED away. A newly-purchased auctioned vehicle, such as the Navigator in the movie, is "ticket-" or "citation-ready", not ready to be driven on the streets.