Common movie and TV mistakes
This is a list of mistakes, things done wrong, etc. that happen so frequently onscreen we barely notice any more. 'Movie logic', stupid behaviours, and everything related.
Factual error: Most ventilation ducts are not large enough for a person to crawl around in, and any duct large enough for an adult to fit in wouldn't be able to support the person's weight. In the rare event that a company could afford a large ventilation system that could support a person's weight, they would likely forgo it anyway, as it would pose a security risk.Phaneron
Factual error: Someone gets punched in the face or otherwise knocked out and comes around hours later, then goes on to pick up where they left off as best as possible and forget the incident in about 30 seconds. If you've been unconscious for hours you've got a traumatic brain injury and need medical attention, you won't be hunting down your assailant any time soon.Jon Sandys
Factual error: Snipers using a laser mounted to their rifle to line up their target. Snipers in real life don't use lasers in this manner. For one thing, it gives away their position, and additionally because lasers won't line up a target accurately at a long range, as the bullet is affected by gravity, the rotation of the Earth, and other factors.Phaneron
Factual error: In many films and TV series that feature passwords being cracked by a "brute-force" attack, individual characters of a password are found independently of each other. (See Ocean's Eight, Under Siege 2, various episodes of Alarm für Cobra 11 - Die Autobahnpolizei, or Person of Interest.) In reality, this is impossible; most of the times the password itself is not stored anywhere. Rather, an irreversible cryptographic hash of the password is stored, and the typed password's hash is compared with that. Either the whole thing is right or no access is granted.FleetCommand
Factual error: People using computers and having what's shown on the monitor's screen projecting clear sharp mirrored images onto their faces. That's not how monitors work. For example in Jurassic Park, when the raptor breaks into the control room and is hopping around the computer workstations, sharp, distinct "GTAC" genetic coding is shown projected from a computer screen across the raptor's face. Another example is seen in the 1995 film Hackers, when sharp, distinct text and even graphics are shown projected from an early laptop onto the faces of Angelina Jolie and Jonny Lee Miller.
Factual error: Actors playing police, soldiers or agents who keep their fingers on the triggers of their firearms. In real life, trigger discipline is an early and repeated part of firearms training. This is often most obvious on movie posters. This mistake has become less common as military veterans started to become advisers to movie makers and actors have sometimes undergone training before filming begins.
Factual error: Often when bombs are shown falling, they're depicted with a distinct whistling sound. Two problems there. Bombs don't inherently whistle - some bombs in WW2 were specifically fitted with whistles for the psychological warfare element, but the vast majority are silent. Secondly, the standard noise heard from the ground, a high pitched whistle slowly getting lower, is wrong. The doppler effect, whereby a sound changes as it moves closer to someone hearing it, means the pitch heard would increase, not decrease, as a bomb falls towards you. The sound most often used in movies/TV shows of a whistling bomb is what the pilots dropping the bomb would hear, not the people it was falling towards.Jon Sandys
Factual error: Protagonists who have been able to clear their name after being framed, but only in the process of committing several other crimes, for which they receive no punishments. The law is still the law and crimes are all separate from each other committed in that time period.
Factual error: Whenever police officers are involved in some kind of shooting while on duty, they are always kept on the case. They're never suspended or investigated by internal affairs. In real life, there's a full on investigation that takes months to make certain the officer in question was justified in the shooting, not to mention the intense media scrutiny surrounding the incident.mikelynch
Factual error: In many action movies someone will instantly kill a man by approaching them from behind, grabbing their cheek, and twisting their head to the side, breaking their neck. The move is even frequently used one-handed. The torque required to actually break a neck this way is enormous and would require much more leverage than simply standing behind someone and twisting their head. Neck cranks are certainly real but they are done in a more traditional "head-lock" style on a grounded opponent. Also, a broken neck is not always fatal, let alone instantly fatal. A broken neck is not even an assured knock-out, so it is absurd to use this move as an effective "stealth kill" in spy movies.BaconIsMyBFF
Factual error: The importance of leaving a crime scene undisturbed is greatly exaggerated in films and TV. Crime scenes are often disturbed deliberately by responding police officers. Immediate safety and the preservation of life are paramount to all other concerns. If a body is found, the scene must be secured to be sure a suspect is not still present and the area is safe; this often involves searching through the scene itself. The body must also be inspected to be certain the victim is deceased and doesn't require medical attention; this act often involves moving the body. The idea of police stopping anyone from going anywhere near a crime scene until forensic examiners arrive is a movie cliche not based in reality. It is rare, to the point of being almost unheard of, for a criminal case to hinge on the positioning of a dead body or the exact location of evidence in a room.BaconIsMyBFF
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