This document discusses conventions used in film trailers for supernatural horror movies. It provides examples from the trailers for several films, including Ouija, Oculus, and Sinister. Key conventions discussed include using ellipses to build tension and reveal scary parts, invisible transitions that mirror supernatural elements, and establishing ordinary characters who then encounter supernatural threats. Common trailer events like doors creaking or characters seeing ghosts in mirrors are mentioned. The document also addresses title designs, release date information, and narrative structures in supernatural horror trailers.