Factual error: There's a couple of scenes where Izzy goes into a speech about how he came to America when he was 10, and he owes so much to that country. The historical Izzy Einstein came to America when he was 15.
Factual error: Towards the end when Pee Wee is being chased through the sound stage, he comes out through the open doors and the red light is flashing that indicates that filming is going on. But if the light were on, the doors would not be open. They also take a while to open, so it's not like they could have just swung open right before Pee Wee got there. (01:14:30)
Factual error: The word 'magician' is spelled 'magicinan' on the cart when Nicholas bends down to collect the spiders web. (00:50:30)
Factual error: When John Cusack is talking to Daphne Zuniga in the swimming pool, watch for the view of the window. There is a palm tree growing at this Northeastern, snow covered college campus. (Obviously an oversight when filming in California, but a mistake nonetheless.)
Factual error: Young David focuses his telescope at the moon. A close up shot then shows a circular view i.e. it is supposed to be the view through the telescope. Both the moon and the clouds in focus. With a telescope the depth of field is short and, with the moon in focus, the clouds would actually be blurred.
Factual error: The KGB agent hunting Jonathan is carrying a Spanish Campo-Giro pistol. There's no way a KGB agent would carry a foreign sidearm in a Soviet Bloc country, especially one that was phased out of service in the late 1920's.
Factual error: Softball games are played with only seven innings.
Factual error: In the beginning when the college grads are making drinks in the blender, they're using Citrus Hill orange juice. The movie takes place in 1971 and Citrus Hill wasn't on the market until the mid 80s.
Factual error: During the big final battle of the movie the bad guys throw around Molotov cocktails, bottles with a rag stuffed into the top of it filled with gasoline. Problem is that the cocktails explode and shatter glass, when in reality Molotov cocktails don't explode they simply smash. And on top of this the first few cocktails that were thrown at parked cars weren't even on fire, rendering them useless.
Factual error: During the baseball game in the beginning if you look in the background you can see several palm trees in the background. The movie takes place in Ohio where there are no palm trees. (00:09:15 - 00:10:05)
Suggested correction: Ohio is never specified as the state where the Nightmare movies take place until later in the series. As long as the state is unspecified as it is in Nightmare 2 and 1, visible palm trees are not a mistake.
All the films are supposed to take place in the same city. So if part 6 takes place in Springwood, Ohio, than so does this one.
While it would be true that the location in all previous films are now Ohio, it's hard to say if it's a mistake for the first 5 films, especially if there's no evidence for it being set in Ohio and evidence points to California. It would be more appropriate to make an entry in the 6th film saying the Ohio location contradicts what has been already seen. Otherwise, you would have to make a mistake entry every time the first 5 films reveal it's not set in Ohio, but filmed in California.
Suggested correction: Per the screenplays, the first two movies take place in Los Angeles.
I believe it was Wes Craven's intention to mention it's set in Los Angeles, but the actual script and film never state where Elm Street is located. It was an un-named suburb.
Factual error: After the car chase in the film, as the car leaves a mess of vehicles behind it, it is obvious that the directional flow of the "props" traffic was on the left side of the highway, as if the film was shot in England. But it was shot in USA. The direction signs on this Los Angeles highway are also not visible to the traffic. Drivers would have to look back to see what exit they just missed.
Factual error: The Air America helicopter that flew Tom Hanks and company out to the site was a Bell 212 (Twin Huey) The movie allegedly takes place in 1962. That model Huey was not introduced until 1968.
Factual error: In the shot of Florence with several bridges and the river shown, cars and motorbikes can be seen going across the lowest bridge in the shot. (00:10:10)
Factual error: Blossom is driving a 1958 corvette in 1955.
Factual error: Near the end, Angelo Partanna gets off an A Train at 18th Avenue to meet Charley. The A Train has never stopped at 18th Avenue. (01:50:00)
Factual error: One zombie, who's rotted away all his organs, has two eyeballs looking good as new. Even if eyeballs didn't rot, they would fall out with nothing to hold them in. Just like the half of a woman zombie that talks with a soft sultry voice but with rotting or missing vocal cords.
Factual error: The fence surrounding the HARP facility that Remo and Conn break into is supposedly electrified. Not possible - it is a standard chain link fence affixed directly to aluminum posts driven into the ground. If it were electrified it would have to be insulated from the posts; the way it is shown in the film, the electricity would shunt into the ground. When the front-end loader hits it, a plume of firework-like sparks erupts from the point of impact. Also not possible - there was nothing in the bucket of the loader to detonate and the metal hitting against the electrified fence would, at most, cause some small electrical arcs.
Factual error: Clocks usually mark the hour with their first chime. The one in Granville and Baxter's office starts striking in the seconds leading up to midnight, even though its hands are showing the time as still before the hour.
Factual error: There is a scene in which the Catholic high school boys are lined up to go to Confession to a priest. One of the minor characters is a compulsive masturbator, a recurring gag in the film. He is trying to estimate how many times he has wanked since his last Confession, and Kevin Dillon's character takes out a digital calculator to help him figure it out. The film is set in 1965, about 8 years before personal calculators hit the market. (I was precisely the age of the characters in 1965, and we would have sold our souls to the devil for such a device. It was still science fiction!).
Factual error: When Kirby sees Dale at the ER, he says "You were a senior when I started at Georgetown." That's just three years between them and the gang just graduated from Gtown a few months ago. Dale should still be in med school, years away from becoming a doctor.