This is not an exhaustive list but just a couple of things I see in movies and television that irk me.
I once read a science-fiction novel where the author took the time to describe the conjoined circles view through a pair of binoculars. I very nearly threw that book across the room right there.
This is a sign that the author only knows what he sees in Hollywood movies. The point of binoculars is that they allow you binocular vision just as you have with your own eyes. You know the two eyes you have in the front of your head. When you peer through them you do not see two circles that overlap like a bad Venn diagram. You see one circle and the view has depth.
Recently I watched the Netflix period/historical drama The Crown. It’s damn good and should be watched if for no other reason than the great performances, but when they presented the correct view through a pair of binoculars I nearly shouted in triumph. It is a little thing, a tiny detail, but details are important. If you get something so basic wrong how can I trust you as a film make or story teller to get the important details right? I would love to find out which movie started this damned trope so I can curse it.
Another optical pet peeve is the view through a sniper scope. You all know the picture. A person, usually a bad guy, is holding a scoped rifle. He pulls it to his shoulder, and peers through the scope. The shot changes to a POB through the scope showing crosshairs fixed firmly on the target, if it is a bad guy you can count on the crosshairs settling right onto the target’s head. Those crosshairs are rock steady.
Take out your cell phone and set up the camera. Focus on something distant and then zoom all the way to the subject while holding the camera/cell phone steady. Do you see how much the image moves? Up, down, side to side, it really hard to hold it steady and you certainly can’t replicate the tripod perfect shot presented as a hand held scoped rifle.
If you are making movies, or writing stories please pay attention to such things. Don’t assume that Hollywood has taught you anything factual because really you can’t trust the movies.