Factual error: When Ray leaves his wife Gina and his car is hit by the truck he should still be in England, but when he is being chased through the streets he is in South Africa, the cops in the car are not in English police uniforms or vehicle, police livery is incorrect, and all vehicles have South Africa plates, not English number plates.
Factual error: The video games Operation Wolf and Rampage were visible in the Family Amusement Center arcade during the opening. However, this would not be possible during the movie's 1984 setting since Rampage wasn't released until 1986 and Operation Wolf wasn't released until 1987. (00:12:48)
Factual error: The "hard suits" the divers wear have soft, relatively normal gloves and soft joints. More akin to a football uniform with armor over spandex. They are at the bottom of the Mariana Trench, at 36,0000 feet below sea level. The pressure is over 7,000 psi. Without a hard suit, they would instantly be crushed.
Factual error: Smaller pieces of the comet start raining down in a highway setting. While small fragments of a comet can come down, they'd all be traveling at anywhere between 20 miles per second as the comet is an extra-solar comet. Those small pieces wouldn't make such piddling explosions, they'd be creating concussion waves that would rupture your organs and send vehicles flying. The heat even from those small rocks would ignite all foliage within 50-100 yards. (01:31:00 - 01:34:00)
Factual error: When first sucking a bullet from the wall into his gun, he then opens the previously empty magazine to find the bullet. Given he didn't work the slide (forwards or in reverse), the round should not be in the magazine, but in the gun's chamber ready to fire. (00:14:00)
Factual error: The Corvette owned by Bentwood is not a Z06 as shown in the movie. It is a 2014 C7 Stingray and can be identified by the Stingray logo on the side of the car.
Factual error: The plot's main conceit hinges upon coders, the art department, and the user-end network team constantly working live at the same time in the same room, as well as developers actively writing code, rebooting servers, and chasing players in-game to get rid of problematic players. No real game company could operate this way. Game content patches wouldn't change the network experience, and in-game aesthetic changes like the ones they make in seconds would require weeks if not months of development.
Factual error: When "some Frida Kahlo-looking asshole" is chasing Harley across the bridge during her close-up you can see that the cartridges are loaded backwards into the cylinder. (00:54:05)
Factual error: Not only Mulan's horse is able to outrun an avalanche (at the beginning even unseen by the large enemy army who does not even notice the event occurring), but it also gallops through it undisturbed while Honghui is being carried away depicted as being in serious danger. (01:09:30)
Suggested correction: This is consistent with what you see throughout the whole film: Mulan consistently breaks the laws of physics because her "Chi" is strong. (Translating it to the Star Wars lingo: Strong with her The Force is.) Five minutes before (video time, not in-film time) she reversed the flight direction of a spear. This is a fantasy film and is supposed to do all of this; we watch it knowing that magic, "Chi", and The Force are not real.
That's a composition fallacy.
Factual error: In the opening scene, Tom Cooper ("The Man") uses a hatchet or tactical tomahawk to break through the front door of a house and then bludgeon to death his ex-wife and her new boyfriend. The boyfriend was whacked over the head one time and, after falling to the floor, two more times with The Man leaning over his body. The man proceeded to the adjacent room to bludgeon his ex-wife an unknown number of times. He was able to exit the house with no visible blood on his body or clothes, which would be impossible after bludgeoning two people with a hatchet or tactical tomahawk. (00:03:15 - 00:04:02)
Factual error: The river that Tyler Rake falls into near the end of the film, the Buriganga, is one of the most polluted rivers not only in Bangladesh, but in the world. There is no way the water is as clear as it appears when Tyler falls into it. It was done for effect, but nonetheless it's not accurate.
Suggested correction: The river is certainly polluted. But unless you have evidence of the view from under the surface, looking up, with the sun shining down, it's impossible to say that the water in that situation wouldn't look as clear as shown.
Factual error: Apex, played by Robert Maillet (a retired professional wrestler 6'11" and 350 pounds), forcefully slams Becky (played by 5' tall fifteen-year-old Lulu Wilson who probably weighs under 100 pounds) horizontally with her back hitting the ground from waist-high yet Becky is able to get up with no incapacitating injury that would be expected. Becky also manages to brutally kill him (as well as the three other neo-Nazis).
Factual error: Joel is using a ham radio set to contact his old colony. A shot of the radio set shows it is set to "CW", which is Morse Code, but he is using voice. And the strength meter is on zero. It should be showing the signal strength. (01:24:00)
Factual error: Medical doctors in the U.S. do not simultaneously use "Dr" as a prefix and "M.D." as a suffix, but the business card Grace had on her refrigerator for her hepatologist had "Dr. Perkins, MD" on it. The business card should have included his first and last name followed by "MD" (or "M.D."). Dr. Jane Doe, for example, would be used by a person with a Ph.D. (Doctor of Philosophy). The business card also lacked a phone number and office address. (00:06:19)
Factual error: When Armando fired the M141 SMAW-D from the helo, there was no back blast out of the other side, not to mention the other man is the back would have maybe had his face blown off from the back blast also. (01:20:10)
Factual error: Rich told Jamie, "There was a car accident. Guy came in. I cut when I should've stitched or stitched when I should've cut. I don't even know. His family sued in civil court, and I lost everything." A doctor working at a hospital would have been required to carry malpractice insurance, which would have protected him from "losing everything." Also, it would be difficult to prove that a car accident victim who died during surgery was a victim of malpractice; most cases are settled out of court. (00:38:30)
Factual error: When Jung-seok is trying to get his sister away from her son, he begins shooting at a zombie that begins charging at him, and he falls on his back. Behind him, another zombie is shown with two other zombies lying on top of him. The zombie then manages to stand himself up, with almost no struggle and this also prompts the two zombies to fly off him. This move completely defies the laws of physics. This zombie should have the strength of an average man, and the two other zombies should be of equal, or at least somewhere near, the same weight as him. He was only using his arms and back to stand himself up, so realistically, the moment of him trying to stand up should have taken a lot more strength and a bit more struggle than what was shown. (00:08:13)
Factual error: TV reporters said "home invasions" and mentioned trying to find the people who were responsible for the "70 robberies." Lance (in prison), was talking to a woman who was going to write a book and told her he got "twelve years" for "fifteen counts of robbery and vandalism." The crime Lance and the rest of the group were committing fits the legal definition of "burglary" in Illinois (basically, entering an occupied structure with the intent to commit a felony or theft inside; the structure does not have to be occupied at the time of the act). Because there happened to be someone at home during their last (intended) "burglary", this offense would be classified as a "robbery."
Factual error: It would have been impossible for the woman to have fallen into the hole on her own and get impaled by the stakes like she did. In order for the woman to land face-up on her back and get impaled by stakes straight up (perpendicular to the ground), she would need to be dropped from above the hole. Even then, the chances of getting impaled like she did would be around zero because her upper body, weighing more than her lower body, would fall faster and hit first at an angle. (00:14:33)
Factual error: The pilot is flying from the left-hand seat. Helos are flown from the right side. (01:23:00 - 01:25:00)