Horror movie clichés.
-Being startled by a small animal only to get killed immediately after.
-When running into a house, the first place they decide to go is upstairs.
-Stabbing/shooting the killer once and running away.
-The main killer is dead but we get a final shot of his hand emerging in frame.
-Shots that are framed in a way where you know someone is going to pop up.
-Looking into a mirror and seeing something behind them.
-Looking into a mirror and seeing their face transformed into a ghost or monster.
-Cars never starting when they're most needed.