Codes and conventions:

-Codes are systems of signs, which create meaning. Codes can be divided into two categories – technical and symbolic:
-Technical codes are all the ways in which equipment is used to tell the story in a media text, for example the camera work in a film.
-Symbolic codes show what is beneath the surface of what we see. For example, a character's actions show you how the character is feeling.
-The technical code of lighting is used in some way in all film genres, It is a convention of the horror genre that side and back lighting is used to create mystery and suspense – an integral part of any horror movie.