The document analyzes the conventions used in the trailer for the horror film "Sinister" through its camerawork, sound, mise-en-scene, editing, genre conventions, and format conventions. It notes that the camerawork uses zooms and wide shots to create tension and suspense. Non-diegetic sounds are used to scare the audience, while diegetic screams convey a character's fear. Elements like a pale antagonist, low key lighting, and a violent axe prop follow horror genre conventions. Fast editing keeps viewers on edge, and the trailer avoids revealing the ending to make audiences want to see the full movie.