This document discusses film genres and the genre of horror films specifically. It begins with definitions of genre and some main genres like action, comedy, and drama. It notes that genres can combine or have subgenres. The document then focuses on the horror genre, explaining that horror films aim to create primal fear in audiences. It discusses some classic horror films and common tropes like serial killers. The rest of the document covers technical elements like lighting, shots, music, and narratives that horror films use to build tension and scare audiences. It concludes by discussing the importance of characters and choosing an appropriate genre, in this case a horror film, to make a trailer for a school project.