Factual error: In the scene where the Gingerdead Man is finally defeated, he fires a six shot revolver at the hero seventeen times without reloading.
Factual error: After falling into the pit of needles, somehow all of the needles in Amanda's skin stay intact and do not break, despite her fall and her rapid digging through them. Very, very unlikely at best. (00:50:50)
Factual error: The trip goes back 65 million years. This is the late Cretaceous period. The Allosaurus was a Jurassic period dinosaur, which became extinct before the beginning of the Cretaceous period. Granted, the Allosaurus was probably the most powerful predator of its time, the events in this movie take place long after the time of the Allosaurus.