Films have formulas and rules, but how well do films follow those formulas? The most commonly known (and mocked) film rules are those of the slasher film (sometime generically called horror film rules) but are they true?
Scream, a post-modern look at the genre. The makers no the rules. The people in the film know the rules, but does that mean it follows them or not?
"What's the point? They're all the same. Some stupid killer stalking some big-breasted girl who can't act who is always running up the stairs when she should be running out the front door. It's insulting." ~ Sidney Prescott.