Factual error: At the end of the film Rainwood has established his innocence of the drug charges and is happily back at work as a senior mechanic for a large airline. However, part of the sentencing and plea bargain protocols at his arraignment is his previous conviction on a lesser drug charge years before. It goes without saying that he did not advise his employers of this when he started work for them - no airline in the world (even pre 9/11) would hire someone with a drug conviction on their record! Now this is out in the open the airline knows that Rainwood is a convicted drug user (on the lesser, legitimate charge) and that he lied on his original job application. They wouldn't hire him again to sweep the floors.
Factual error: After the first victim they claim to have found a shell with 'Megan Turner' on it. That's not possible as we see Ron Silver fire at the victim and immediatley run away. If it had been an automatic then the gun would eject the shell, but it's a revolver, which doesn't eject shells.
Factual error: When the air hose on the truck is severed, the brakes release. In reality, on an air-braking system, if the air hose is severed, the brakes lock on as a safety measure.
Factual error: Hooch is a french mastiff. The dog he gets pregnant is a collie. Different breed dogs do not make purebred puppies. Hooch's pups would be part collie, part mastiff. In the end of the movie, one pup is pure mastiff like hooch and 4 are pure collies like their mother.
Factual error: In the scene where Riggs drops the container, there were only two buttons on the control. I've never seen a hoist with a drop button, just an up and down and they are pretty slow. (01:39:25)
Factual error: [Special Edition] The Statue of Liberty is incorrectly shown to be facing the Narrows bridge.
Factual error: When Jamie and the cop are in the room upstairs and Michael is breaking through the door, The cop shoots ten shots out of a revolver without reloading.
Factual error: When Bigfoot is about to drive through the car dealership it squeals tires with a high pitched squeal. IF it could spin those big meats it would be a deep hound dog like bark. (01:40:40)
Factual error: When Stallone pulls over the cocaine tanker, his first shot at the truck is impossibly accurate at about 300 yards with a two inch barrel revolver, which has a functional range of 25-50 yards. (00:05:00)
Factual error: When Sylvester Stallone is being thrown in a cell for 6 weeks (in his underpants only), he got out of it (after 6 weeks) freshly shaved.
Factual error: Marty is pursuing Biff at the high school as the other Marty pulls up with Lorraine in Doc's car. In the parking lot, the car closest to Biff is a brown 1957 Chevrolet. The front grill and styling are distinct and unique to the 1957 model year. In November 1955, it would be plausible to see a 56 Chevy in the lot, but a '57 is a bit early. (01:16:42)
Suggested correction: Watched this scene carefully and compared photos of the 1956 and 1957 Chevy to the car in question. It is almost certainly a 1956 Chevrolet 210. The grill could be mistaken for a 1957 in the dim light, but the real giveaway is on the hood: the '56 Chevy had a single, centred hood ornament (as seen on the car in this scene), while the '57 Chevy had a pair of "rocket" ornaments on either side of the centreline.
Factual error: An animal that lives in the deep sea cannot live in the open air above the water.
Factual error: Three different characters (including two police officers) describe the car driven by the bad guys as being a maroon Ford wagon. Yet in the two scenes showing the car, it's a Pontiac.
Factual error: The Bat signal at the end would not show up like it did in the film. In order to be as clear as it was, as well as visible, it would actually have to shine onto a surface, not just the clouds. They made this same mistake in Returns, but made it believable in the clouds (just not as sharp) in Forever.
Factual error: When Kirk falls off El Capitan, he is shown falling all the way past the tops of the trees. I have been to Yosemite and the trees are tall, but not tall enough to give Spock enough time to slow then stop Kirk's fall.
By the time Kirk reaches the top of the trees, he is traveling at terminal velocity (assuming Kirk was halfway up, about 2000 feet from the ground, and an initial fall rate of 32 feet per second, per second), approximately 120 mph, about 200 feet per second. If the trees were 1000 feet tall and Spock caught Kirk right at the top of the trees, that would give him 5 seconds to slow down and stop Kirk. Impossible. Fortunately, in the movie he was able to accomplish this feat, or it would have been a very short movie. :).
Suggested correction: Even today in 2023 felony convictions might not show up on a background check. Not all information has been uploaded to the internet yet. It was extremely easy in the 1980's for a conviction to be missed by a background check especially if there was no prison time served or it occurred in a rural county or town.
He just got out of prison and establishing his innocence involved the violent deaths of at least two people. Do you not think that his employers just might have followed his story? He'd be all over the news media. The idea that not one person would have followed up on his criminal history is beyond absurd - we are talking about a safety critical job that involves the safety of hundreds of people.