The document discusses conventions for horror film trailers and teasers. It covers typical lengths, editing styles, sound design, narrative structure, characterization, title placement, and other elements. For their own teaser trailer about two YouTubers exploring a haunted forest, the authors considered conventions from films like Scream, Blair Witch, and Get Out. They aimed to create mystery and tension without revealing too much of the plot. Location, lighting, colors, props, and a simple storyline were employed to effectively set the horror genre and intrigue audiences.