The document discusses conventions for post-apocalyptic horror film trailers based on research. It identifies several key conventions including fast-paced editing to create chaos; isolated and abandoned settings; weapons used for violence; and dangerous antagonists that threaten the protagonists. Musical conventions include a loud, tense soundtrack. Visual conventions include establishing shots of desolate settings, and cinematography like low angles. By including these common elements and themes of danger, violence, and survival, the author's film trailer will appeal to audiences and fit within the genre.