The document discusses several key elements of horror films, including icons, narrative devices, codes and conventions, sounds, rating certificates, and institutions. Icons in horror films usually involve a memorable weapon or facial feature of the villain. Narratives can be linear, non-linear, or multi-narrative. Horror films aim to scare viewers safely and use shots like high angles to make villains seem threatening. Iconic horror music builds tension. Rating certificates depend on a film's content, with 18 ratings allowing more graphic violence. Major studios like New Line Cinema have produced popular and profitable horror franchises.