Factual error: When Bruce and Patricia are in a lift after being chased by the cars in the garage, the lift rapidly descends but the two people in the lift are seen struggling on the floor when they should just about be on the ceiling due to the speed of the lift's descent.
Factual error: The damage done by the hobgoblin-induced fantasies is real, as seen several times in the movie. Kyle's car runs off a cliff, Nick's grenades really explode, etc. Nick is in one scene set ablaze by throwing himself on a grenade, and is completely engulfed in flames from his head to his toes. But he shows up in the last scene with nothing but a few minor burns on his forearms and a pair of crutches (that he immediately discards). His hair and eyelashes are not even singed.
Factual error: This is a summer time movie but you can see brown leaves everywhere in the film like its the beginning of fall.
Factual error: For most of the movie you can see mountains and large hills in the background. The movie takes place in Kansas and almost all of Kansas is flat.
Factual error: Chucky blows out the pilot light in Eddie Caputo's house and, mere minutes later, there's enough gas for a single gun blast to then cause the whole house to explode. 1) It would take hours and hours for enough gas to fill up that house to present a safety issue; 2) By that time, Eddie would have unmistakably smelled it; 3) A gun blast wouldn't be enough to ignite that gas anyway.
Factual error: Throughout the movie, whenever the sunglasses/contacts are worn, both visual and audible hidden subliminal messages are seen and heard. Such as the hidden "obey" message flashing, or the hidden traffic siren repeating "sleep," etc. The problem is that the glasses/contacts only help the eyes, not the ears. So the hidden audio shouldn't be heard any differently or clearer than it is with them off.
Suggested correction: The glasses/contacts are made of a material that blocks the alien signal, hence why wearing them too long makes you feel sick since it messes with the brain. That would allow you to hear the audio as well.
Not true. Yes, the glasses would help you to be aware that the sounds existed; however, the error is that the sounds become louder. Take the traffic signal device. If it is saying "sleep sleep" as a subliminal message outside normal human hearing, wearing the glasses won't change the volume of the subliminal "sleep message" from "sleeeep" to "SLEEEP". Unless you're saying the sounds were always at normal human hearing levels.
That's exactly what was happening. There's a difference between frequency and volume. A sound can have a frequency outside normal human perception and still be loud. For example, a dog whistle is loud enough to hear, but not in a frequency most humans can hear. The plot of the film seems to be that the frequency isn't picked up by the conscious mind, but by the subconscious mind, much like the visual images.
I just assumed, as is the case with most subliminal audio, that the sound messages were a case of low volume and not frequency. That is, sounds that were just below normal hearing volume. That is barely hearable to the average person volume-wise, but they heard enough for the brain to perceive them and process the information subconsciously. Unfortunately, I can only speculate which it is without an absolute answer, so I can't argue the correction really.
Factual error: When Tina and Jason are in the basement, she sprays gasoline at him. It's clear like water. Considering it's covered in cobwebs, it's been there a long time and would be dark in color, because it gets darker as it ages.
Factual error: Right before Elvira is burned at the stake, the officer pronouncing judgement on her says "By the power vested in me, by the sovereign state of Massachusetts..." Massachusetts (according to its own constitution ratified in 1780) is a commonwealth, as are Virginia, Kentucky, and Pennsylvania. Although the internal governments appear to be different, they have the same legal status as states within the United States. (01:17:50)