Thrillers use suspense, tension, and excitement to engage viewers. Common thriller elements include surprises, twists, quick cuts, music to add tension, lighting to create shadows, and perspectives like the killer's point of view or flashbacks. Thrillers can be divided into categories like action, psychological, and crime thrillers. A good thriller keeps viewers wondering what will happen next through suspense and tension as the protagonist encounters menacing situations. Editing, sound, music, lighting, and perspectives are used to build tension and suspense.