The document discusses various themes, character types, visual styles, props, settings, and filming techniques commonly used in horror films. Some key themes mentioned include good vs evil, the supernatural, science gone wrong, and revenge. Common character types are the main protagonist/victim, villain/monster, ignorant teenagers who get killed, and creepy or possessed children. Visual styles aim to create tension through dark colors, flashing lights, and obscured lighting. Common props include weapons, masks, and religious icons. Settings tend to be isolated or abandoned places like hospitals, schools, forests, and houses. Filming techniques that build suspense include shaky cameras, soundtrack, editing, and point-of-view shots.