Factual error: The gold bars that the crew finds must be some new type of lightweight gold. There's no way that Julianna could stuff a gold bar in her back pocket and then pull it out and toss it on the table and Greer simply tosses it back and forth like it was plastic. A gold bar weighs around 27 pounds, you definitely wouldn't be tossing it around. (00:42:05 - 00:47:50)
Factual error: When the special forces arrive in the Station of the hive, the computer identifies the soldier`s weapons. The name under the picture is right, but the picture always shows an MP5, even at the soldier carrying a G36 Assault rifle. (00:19:20)
Factual error: When May cuts her eye out with the scissors at the end of the movie, the fake eyeball used for the effect is perfectly round. A human eyeball is far from being perfectly round.
Factual error: In the scene where Noah analyses the tape, he says that the 'timecode' seems to be invalid and says that every tape has a track where you can see what device was used to record it, etc. The video technology explanation originates from the original, Ringu, with the plot of The Ring changed to make it more applicable to average Americans. But a VHS tape does not have a special track for timecode. It is possible to lay a timecode onto the tape in either an analogue form via a special audio channel, or as digital information on lines 16 and 18 of the vertical interval. But this 'timecode' is only used for professional video editing. A standard VCR, like the one they were playing the tape on, does not use this, and therefore makes Noah's explanation a minute of utter nonsense.
Factual error: The bandages for Freddie's stab wounds are on top of his shirt. If he were really stabbed severely three times on the shoulder, the paramedics would have at least make him take off his shirt to better dress the wound. Freddie didn't even take off his jacket!
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: When Ellen gets married in 1907 she is 20, but when she disappears in 1950 she is 70.
Factual error: When Julia goes to see her childhood psychologist, there is a fish in a bowl sitting next to the window. This would kill a fish within a day or two because of the heat being magnified by the window.
Factual error: After Jim escapes the house and makes his way back to the blockade there is a shot of him operating the siren. In the background is a sign saying that the M55 junction for Blackpool is in 1/3 mile. The M55 is nowhere near the M602, where the blockade is supposed to be. (01:30:20)
Factual error: When the house explodes, the only survivors were Private Cooper and the dog, who were hiding in the cellar. With an explosion big enough to destroy the house, the cellar would have been destroyed too, if not from the fireball then definitely from the shockwave. (01:35:00)
Factual error: The spiders shown in the movie have no adhesive pads like real spiders, but only sharp points on the tips of their legs. Given the mutation, this is possible, but without their gripping apparatus, they should not be able to climb up anything. (01:00:10)
Factual error: In the close up shot showing the record on the record player, the label correctly identifies the song that played as Benny Goodman's "Sing Sing Sing (With a Swing)" but the label also states it is a "Swing Classic," a classification only used when the record was later reissued. The label is inappropriate for a World War II time frame. (00:16:05)
Factual error: With a significant portion of Marcy's legs either shaved off her body or in a state of severe rot, it's doubtful she would even be able to stand up properly, let alone run away from a mad dog. And if she'd already lost as much blood as we later see smeared around the bathroom fixtures, she probably wouldn't even be conscious. (01:10:45 - 01:37:50)
Factual error: In different scenes, with the mama Megalodon, the teeth shown are around the size of the people themselves. In actuality, the Megalodon's tooth is only a bit larger than the size of your hand.
Factual error: At the end of his first session with the lady doctor, the serial killer touches a guard and makes him crazy. The guard goes into an office, grabs a shotgun, sticks it right under his chin and pulls the trigger. The gun is pointed straight up, but the blood splatters straight back onto the wall behind him, not up into the air.
Factual error: During the fight just before Elvis uses the alcohol, Bubba Ho-tep exclaims a series of Egyptian hieroglyphs which are translated as "By the unwinking eye of Ra." The symbol on the far right is not the Eye of Ra (which faces right) but the Eye of Thoth (an identical symbol which faces left). (01:18:10)
Factual error: No way the sound of Jenny's voice calling for Malloy from afar through Slater's walkie-talkie was this loud and with no noise at all (at Malloy's end) from the storm she and Slater was in.
Factual error: John supposedly goes to Chicago to talk to a mothman expert, but it shows the two of them walking into The Mellon Institute which is actually in Pittsburgh.