The document discusses the process of creating a horror film trailer based on analyzing existing trailers and films. Key conventions from the genre were incorporated such as using teenage characters in a school setting and a runtime of around 2.5 minutes. Props like alcohol and cigarettes were included to portray teenagers realistically while knives and blood were avoided to keep the supernatural focus. Editing techniques like jump cuts added tension without explicitly showing demons or ghosts. The trailer was also shot during the day to challenge conventions.