As long as you keep the audience on the edge of their seats, either scare them or keep them guessing, you can put anything in there that you want.
Wes CravenI learned to take the first job that you have in the business that you want to get into. It doesn't matter what that job is, you get your foot in the door.
Wes CravenThe experience of going to a theater and seeing a movie with a lot of people is still part of the transformational power of the film, and it's equivalent to the old shaman telling a story by the campfire to a bunch of people. That is a remarkable thing, if you scream and everyone else in the audience screams, you realize that your fears are not just within yourself, they're in other people as well, and that's strangely releasing.
Wes CravenThe first monster that an audience has to be scared of is the filmmaker. They have to feel in the presence of someone not confined by the normal rules of propriety and decency.
Wes Craven