[can't get enough gore]

this is only my opinion from my expieriences....

1. you must have creepy villians: must be sadistic,yet be smart to set up deaths etc.

2. emotion: make the audiance put them selves in their position,that will truly make a film scary

3. gore: you cant just splatter shit on the walls...the way you kill,torture,maim a actor will really hit home

4.story:dont be like hostel,make a smart,interesting,scary story....think SAW...the saw movies had great stories that came all together at the end

5.characters:you must have interesting characters...if the audiance likes them they will be attached and when they get butchered in comes in the emotion

thats the best i can do if i ever made a film i would focus on those 5 things