This document discusses genre theory and its application to analyzing media works. It provides definitions of genre from theorists like Chandler, who see genres as consisting of conventions around themes, settings, and style. It also discusses theorists like Altman who view genres as defined by media codes and narratives, and Culler who sees genres establishing expectations for creators and audiences. The document then prompts applying these genre theories to analyzing one's own thriller film and music video works, considering how they do or do not conform to genre conventions. It suggests genre provides benefits to producers, distributors and audiences by providing templates and expectations but also can evolve over time as societies change.