Factual error: Our heroes find a boat belonging to shark poachers, smashed to pieces by the Meg. Floating about in the debris are the bodies of a number of dead sharks. Sharks do not have swim bladders and dead sharks do not float - they sink.
Factual error: Rob Base and DJ E-Z Rock's "It Takes Two" was not released until 1988. This movie takes place in 1987.
Factual error: Aquaman lifts a submerged submarine towards the surface, which should start to sink again straight after releasing it, as its ballast tanks are still full of water. It shouldn't stay floating like that.
Factual error: During the plane ride into France, the Paratroopers are holding/carrying their weapons by their sides. In reality, their weapons (M1 Garands, B.A.R.s, etc.) would be carried in special "bags" strapped to their parachute harness. This not only protected their weapons, but also secured them to their person.
Factual error: When Venom is standing on top of a tall building, he falls off as a jet airliner passes over head with its loud engines hurting the Symbiote with its noise. The airliner passes very close to the building. But this would not happen as it is as FAA regulations are that an aircraft can not operate within 500 feet of any structure. And an airfield/airport would be positioned so that jets would not violate this decree on their landing descent.
Factual error: The third key Easter egg was actually a color-changing flashing pixel in the Atari Adventure game. You had to grab the purple bridge (they looked like outward facing brackets) and go into a box in the lower left corner of the blue maze and move along the bottom left corner. In the movie, it was picked up in the invisible maze. The wall you walk through then flashes along with the pixel, and you may move through it as shown in the movie to see the author's name.
Factual error: Owen should be killed instantly by the volcanic ash at the island and he could not run fast enough in order to avoid it. (00:44:15)
Suggested correction: Volcanic ash is is not deadly to the touch and is not high in temperature. At worst it can be toxic if inhaled for long periods of time. There have been plenty of instances where entire towns were engulfed in ash and the residents were fine. What I think this mistake is referring to is something called Pyroclastic flow which is very deadly at 450°C and can travel 80 km an hour. Volcanic ash can sometimes be residue from pyroclastic flow but doesn't have to be precursors or remnants to it. The film never states whether it's volcanic ash or pyroclastic flow but since Owen as well as the dinosaurs inside survive it can easily be inferred to be volcanic ash.
Factual error: When the soldiers are in the woods looking for the wolf, they come across a group a deer that bolt between them and around them scared for their lives and spooked. The deer runs behind the soldiers and they look at each other wondering what happened. Then the giant wolf, Ralph, suddenly comes up from behind the soldiers and eats one. But the deer just ran towards the direction the wolf came from. Meaning the deer got scared, but chose to run towards the giant hungry mutant wolf.
Suggested correction: If you watch carefully, the deer run past them to the right and away from the direction of the camera. Then the wolf comes from right, but from closer to the camera. At the speed that wolf is moving, it was able to circle around them and then strike.
Factual error: During the mid-credits scene T'Challa is addressing the United Nations about Wakanda's true nature. A Welsh flag can be seen among the other nation's flags, which would suggest that Wales is a separate nation from The United Kingdom - not the case.
Factual error: Cat Rivers is flying the R44 helicopter from the left seat. The R44 is a single pilot helicopter fitted with dual controls. Two collective levers may be installed (the left is removable) but the cyclic control is not of a conventional nature. This comprises a central stick terminating in a pivoting T bar, which only allows one of the pilots at any one time to control the cyclic with the hand grip in the 'normal' position. The R44 is normally flown from the right seat; it is possible to fly from the left seat and instructors regularly do so. Students and low experience pilots would normally only fly from the right seat, and are discouraged from flying from the left seat when with friends. This is because of the unusual cyclic control configuration and, to some extent, the different instrument scan and visual references for hovering when flying. (00:14:40)
Factual error: Three men are having beer one night in the woods. One man says he has a picture of a girl he took the previous Tuesday. When he goes to get the picture (which would be on his phone), he complains that he can't show it because there is no signal reception. You don't need a signal to show a photo you took on your phone. (00:07:10)
Factual error: At the beginning 'researchers' are working on the 60th parallel in the province of nunavut. Nunavut is not a province; it is a Canadian territory. They appear to be working in the winter. At the 60th parallel, the winter would be almost dark and the sun would never be that high in the sky. Given that sun, it would be summer. In the summer, you would not have that snow cover.
Factual error: You can't detonate C-4, or any plastic explosive, by shooting at it. It's made to only be detonated by a smaller explosion (a detonator). (01:27:05)