JUST A FEW OF MANY, MANY MOVIE CLICHES.

One of the most common mistakes in movies is the scene of the just murdered body floating in the pool as in the most-famous movie with such a scene Sunset Boulevard. Sorry Hollywood, but a drowned person sinks to the bottom and doesn't float face down on the top; they sink to the bottom until their bodies gases float them to the top.  It may not bother most people, but it kills my liking for the film. But I hate all movie cliches. Like the person turning on the lamp before answering the phone; the exposition from the killer before shooting the hero which he never gets to do because he talked too long; the fact that nobody says goodbye on the phone; the fact that the radio comes right to the spot about the crime as soon as they turn it on; and so on and so forth.