The document discusses several common camerawork, editing, mise-en-scene, sound, and ancillary product conventions used in horror film trailers. Wide shots and establishing shots are used to introduce characters and settings. Close-ups focus on characters' faces to build tension and emotion. Fast-paced editing, jump cuts, and montages are employed to quickly convey action and suspense. Low-key lighting, everyday settings, weapons, and changing costumes are implemented to establish atmosphere and hint at danger. Non-diegetic music and sound effects enhance tension, excitement, and realism for audiences. Isolated or cryptic images are featured on ancillary products to pique viewers' curiosity without revealing the plot.