Conventions Of Films

There are many codes and conventions of standard Thriller/Horror/Gore films.
Primarily, there is an initial victim. This victim is usually killed within the first scene, usually in a horrible way. At the end of the film, there are usually two survivors, a man and a woman. In many horror films has this been done. Wrong Turn is a prime example of one of these films. There are usually parts of the film in which the viewer is reduced to shouting things at the character about to be killed, usually because they are doing things that the viewer deems as stupid, such as backing into a dark room that the killer will obviously jump them from.

There is low key lighting used in these types of films, to convey darkness and fear.
>>>>>>>>>>>>SAW 5 scene where someone is trapped in a dark basement of an abandoned factory.

Lots of side lighting is also used to show that the killer has multiple personalities

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Music usually is typically string music, low string instruments create a feeling of tension in the reader, and there are high pitched instruments that climax in a death (Psycho).