You forgot a couple.
In any slasher movie, anyone having sex will die soon.
In any horror movie, no matter what they know about the danger, upon hearing a noise people will go outside and say either "Is someone out there?" or "Who is out there?"
Another horror movie cliche.... once the group learns there is a psycho on the loose, they quickly split up and wander around on their own.
Another horror movie cliche.... once the group learns there is a psycho on the loose, they quickly split up and wander around on their own.
Or, in modern times, Morgan Freeman.![]()
Or grabs an effective weapon.And no one ever turns the lights on.
Or grabs an effective weapon.
Another is the requirement for every car wreck to end in multiple explosions.
If the characters are in any kind of airborne vehicle and it runs out of fuel, it will crash and explode as if it had full fuel tanks just after they get out of the vehicle, even if it lands in the ocean.