Factual error: When the Titanic sinks all six dwarves and Kevin end up in the sea clutching a lifebelt. The water in which the Titanic sank was freezing - that is how most of the casualties died, by freezing, not drowning. In water like that you'd be lucky to stay conscious for more than a few minutes. Despite this none of them show the slightest effect of the cold. Maybe the dwarves have some 'magical' ability to withstand lethal cold, but Kevin doesn't even react to being plunged into freezing cold water. He'd be screaming in pain, but he doesn't even show the slightest sign of discomfort.
Factual error: The wrestler is killed by Snake stabbing the back of his head with a spiked bat, having rather long and thick spikes on it. As the Wrestler falls against the net, the back of his head is shown as he is slumped over the net. There is no wound on his head, nor any trace of blood, despite having one or more large spikes just jammed into it. (01:16:55)
Factual error: Franklyn Hart keeps his car running by pumping out the gas from the bottom of abandoned gas pumps which the pumps themselves couldn't reach. In reality, as this gas is on the bottom, it would be full of sludge and garbage, and since it has been sitting there for 20 years, it would barely be usable and would probably damage the engine. He certainly wouldn't be able to do high speeds with it.
Factual error: After the autopsy of "Sheila," the medical examiner tells the entomology expert that "she has no internal organs whatsoever." Yet, we're looking at "Sheila," and she has not been cut open at all, certainly not in the standard Y-shaped incision used in autopsies. Wouldn't even the worst medical examiner at least look inside before stating that internal parts were missing?
Factual error: There's no way the gyro helicopter could carry 2 men and four jerrycans of petrol across a desert. It is only built for one person and would never lift off. And where would they put the second person and petrol anyway?