This document discusses conventions and inspirations for horror trailers and films. It notes that while ghosts and demons were traditionally the source of horror, the genre is expanding to include other supernatural elements like mummies. Locations are also broadening from just abandoned sites to include realistic settings like planes that are harder to escape. The document advocates using a handheld camera perspective to make audiences feel like they are part of the film, but combining it with traditional filming to avoid being overused. Overall, it promotes drawing on true stories and relatable locations to create more realistic and thus scarier horror content.