This document discusses film genres, defining genre as sets of patterns that transcend individual films and guide their construction and audience reception. Genres change over time and hybrids emerge. Genres are commonly categorized by setting, theme, mood or format. Producers and distributors use genre to minimize economic risk and promote films, while audiences use genre for pleasure and escapism, having expectations of typical conventions. Pleasure comes from recognizing genre conventions as well as their repetition with differences and innovations. Genre positions audiences and provides reading positions for ideal readers.