This document provides an overview of genre theory and film genres. It defines genre as types or categories of cultural works that share common elements. Genre theory examines the conventions across different works that allow them to be grouped together. The document then lists some common film genres like crime, comedy, drama, and thriller. It includes activities where readers identify genres of films from posters and the expectations of different genres. Finally, it discusses auteur theory, noting how some directors like Tim Burton and James Cameron have consistent styles and themes across their works.