Best horror movie factual errors of 1987

Factual error: At the end when the shark is attacking the boat and the electronic device is used you can hear the shark roar. Sharks cannot produce this sound since they have no vocal cords.

Factual error: Ventura carried the M134 Minigun and an ammo pack which holds 500 rounds. At its firing rate, that ammo would be spent within a matter of seconds, not minutes as was seen in the movie. (00:47:45)

Factual error: The opening sequence is set in the 1950s, but there are modern school buses, cars, TV aerials, traffic signs, clothes, house architecture and style.

Factual error: Sam neglects to cock his gun before he shoots Old Cheif Woodenhead. (00:24:40)

Hamster

Factual error: When Ash finds the bridge destroyed, in a side view we see the bridge missing, and both cliff edges either side of the screen. However the right cliff side is up MUCH higher than the cliff Ash is on. (00:10:45)

Hamster

Factual error: Sam asks his mom if he can sleep in her bed. He sits down and she says, you smell like garlic. He's wearing whole cloves around his neck which don't smell at all until they are cut, crushed, or minced.

Factual error: The way Horace was holding the shotgun was incorrect and dangerous; the kickback of the blast would have knocked him, like any other 12 year old child, off balance and caused him to miss his target.

Factual error: This film begins with a foreboding quote attributed to Edgar Allen Poe: "Sleep. Those little slices of death. How I loathe them." Problem is, Poe never wrote any such thing (and neither did Henry Wadsworth Longfellow), despite decades of misquotes and misattributions across the Internet. So, where did the quote actually originate? The answer is Walter Reisch, lead screenwriter on the 1959 film "Journey to the Center of the Earth." In Reisch's screenplay, the antagonist Count Arne Saknussemm is urged to get some rest, to which he memorably replies, "I don't sleep. I hate those little slices of death."

Factual error: In the movie's opening scene, it's night and we see the full moon. There's an elderly priest lying in bed. The next morning we learn the priest has suffered a stroke and been taken to the hospital. That day, Prof. Birack pauses before entering a campus building to look toward the sun. We see a thin crescent moon near the sun, as if there will be an eclipse in the next few days. That night, Brian is waiting outside a campus building for Catherine to come out. He looks up at the full moon. In following days, other characters see the daytime crescent moon, still approaching the sun. It's impossible to see the full moon at night AND a crescent moon during the day in that brief a time span. It would be more like 12-14 days for the lunar phase cycle to progress from one to the other (much less back again).