This is a concise evaluation of film genre, discussing genre theory and sample analyses of the western, science fiction, the musical, horror, comedy, and the thriller. It introduces the topic in an accessible way and includes sections on the principles of studying and understanding ''the idea of genre''; genre and popular culture; the narrative and stylistic conventions of specific genres; the relations of genres to culture and history, race, gender, sexuality, class and national identity; and the complex relations between genre and authorship. Case studies include: 42nd Street, Pennies from Heaven, Red River, All That Heaven Allows, Night of the Living Dead, Die Hard, Little Big Man, Blue Steel, and Posse.