I was watching TV the other night, and a couple characters were sneaking around a building by crawling through the air ducts.
This doesn’t happen a lot in real life because AIR DUCTS AREN’T BUILT TO HOLD PEOPLE. Air ducts are built to hold air. Air, for purposes of this discussion, at least, doesn’t weigh anything.
In real life, if you tried to crawl through an air duct, it would collapse under your weight.
Also, in the movie, the guys in the air duct were arguing, and no one heard them. In reality, air ducts have decent-sized openings every few feet called “vents.” These are basically unobstructed holes in the side of the duct designed to allow air to blow from the vent into the room. Air vents aren’t soundproof. Also, air ducts in movies and TV shows are metal, a material that has a tendency to amplify sound rather than dampen it.
So, even if an air duct was strong enough to hold people, EVERYONE ON THE FLOOR, IF NOT IN THE BUILDING, WOULD HEAR THEM SCOOTING AROUND AND TALKING TO EACH OTHER.
When I see a movie or TV show where someone’s crawling through the ducts, I assume the writers and director didn’t put a lot of thought into it, so it’s probably a waste of time.
Any movie clichés that are deal-breakers for you?