This document defines thrillers as films or novels with exciting crime or action plots that hint at something scary. It provides examples of thriller films like Lucy, Se7en, and Taken, analyzing their use of action, suspense, and protagonists versus antagonists. Key elements of thrillers discussed include crime, mystery, suspense, stereotypical representations of characters in distress or on a mission, and conventions like tense music, dark clothing and lighting, and climax scenes.