Film genres are categories that classify movies based on their themes, styles, and narrative techniques. Common genres include action, comedy, drama, horror, and science fiction. Each genre has its own conventions and audience expectations, helping viewers choose films that match their interests. Genres can also blend together, creating sub-genres like romantic comedy or psychological thriller. This blending allows filmmakers to explore diverse storytelling methods and appeal to a wider audience. Understanding film genres enhances the viewing experience by providing context for the story and its characters.