Horror movie conventions typically involve certain settings, characters, and narrative structures. The setting is usually dark, old, and gloomy locations like haunted houses or abandoned places. Character types include the main protagonist/victim, a villain like a serial killer or monster, and other stereotypical roles. Narrative structures use elements like unexplained events that intrigue audiences and good vs. evil binary oppositions between characters. Visual elements also follow conventions, with dark colors, shadows, low lighting, and costumes reflecting the characters' roles.