Factual error: When Steve Martin dies with the mask on, the inflation bulbs (the little black bags that inflate and deflate) deflate completely. Actually they should INFLATE completely and stay that way. The gas is still on full blast and Steve is no longer inhaling (which would cause them to deflate). It was done only to emphasize Steve Martin's demise but it's factually incorrect.
Factual error: The uniform the female soldier is wearing when she comes back home is all wrong: the camo pattern is that of the USMC digital desert uniform but it has "US ARMY" chest tags (in a strange size and position, by the way). The US flag and unit insignia are on the wrong arms. The cut of the jacket is ACU, the pants are true USMC. (00:15:00)
Factual error: The Swedish subtitlers made Amanda's situation even more tragic, incorrectly translating her dead cellmate as her dead soulmate.
Factual error: When Kharis is being examined by Petrie, he says that the lines on his face were caused by him being buried alive. In the next sentence he goes on to say that Kharis shows the best example of the embalmer's art that he has ever seen. Strange - if you're planning on burying someone alive you wouldn't embalm them first - that process would kill them!
Factual error: The rifles the British soldiers carried in the film were Lee Enfield rifle No. 4's, these did not go into production until WW2. They should have been using an earlier version of the Lee Enfield rifle.
Factual error: The teens are traveling presumably along the Meadowbrook or Wantagh parkways, when they enter Jones Beach. They see a sign just before the beach entrance that says "New York: 93 miles", when Jones Beach is less than 15 miles from NYC limits and approximately 25-30 miles from Manhattan.
Factual error: When the shark swims towards the glass, it doesn't move its tail. Sharks have to swing their tail in order to swim. There is no way this shark could be moving.
Factual error: When Virginia Madsen's character sees Candyman in the mental hospital, a male nurse calls for the injection of 1000 milliliters of sedative to calm her down. 1000 milliliters is equal to 1 liter, which certainly could not be injected, let alone as fast as it was.
Factual error: The husband was killed in an explosion. There would be no body for a casket, much less a head full of hair.
Factual error: Winter in Antarctica would not have a night and day as portrayed, with the amount of light changing so much during the course of 24 hours.
Factual error: In the beginning of the movie, it states that every 23rd Spring, for 23 days it eats. I am no farmer, but isn't there that saying KNEE HIGH BY FORTH OF JULY? From the looks of that corn, it looks like it is October or even November...Definately NOT SPRING in TEXAS.
Factual error: When they are refuelling the helicopter (as a zombie approaches quietly from behind) the actor has put the gas nozzle not into the hole for the gas tank, but into one of the foot-holes that helicopter mechanics use to climb up to the top of the helicopter to do repairs. It doesn't even fit properly. (00:22:55)
Factual error: The predator enters the compound and picks up the scorpion. The silhouette of the scorpion changes from bright to dark, showing a drop in temperature. But scorpions are cold blooded animals who have an ambient temperature. The predator should never have seen it at all.
Factual error: Every time the silver nitrate is shown on clothing, it is shown as silver. Silver nitrate in fact is black once exposed to light.
Factual error: As the Thug Zombie is on top of the lawnmower and is getting hacked to bits, his body parts don't fly off. His arms would've gone everywhere when the blade reached his shoulders, and the same goes for his head. (01:29:15)
Factual error: In the fire at the lighthouse, Stevie puts her hand on the fire extinguisher nozzle. It would have frozen her hand and made it stick to it.