The document discusses genre theory and conventions for different film genres including horror, thriller, comedy, and romantic genres. It provides an overview of Rick Altman's semantic and syntactic approach to genre theory which examines genres conventions and narrative structures. It then lists common conventions for each genre such as lighting, shots, locations, characters, and examples to illustrate why certain conventions are used. For example, it notes that horror films commonly use low key lighting and close ups to scare audiences while comedies use high key lighting and natural shots to bring levity.