We can identify genre in a number of ways like: narrative, music, cinematography, mise-en-scene and even the director.
A typical setting for a horror could be a isolated location that is near a misty forrest.
The audience uses genre to identify films they want to see or that they would like.
Genre is important to filmmakers because they have to know what type of film they want to make. Also the audience will want to know what to expect. The filmmakers would also use the codes and conventions as a guideline.
