After that come a bunch of good ones. Alien probably at the top, but followed by the original Nightmare on Elm Street, the original Salem's Lot (surprisingly good for a TV movie), the original The Thing (remake's good, too; just a different movie), not sure how to categorize Aliens but it's great... and a stack of others.
Dan
I also posted Jeepers Creepers.
I don't even like horror films...can't get into them. But, for a movie with a teens in trouble storyline, the demon character in Jeepers Creepers is scary.
Not so scary the second time around.
Forgot to mention The Omen.