Categorization
Film genres can be categorized according to the setting of the film. Nevertheless, films with the same settings can be very different, due to the use of different themes or moods. For example, while both The Battle of Midway and All Quiet on the Western Front are set in a wartime context, the first examines the themes of honor, sacrifice, and valour, and the second is an anti-war film which emphasizes the pain and horror of war. While there is an argument that film noir movies could be deemed to be set in an urban setting, in cheap hotels and underworld bars, many classic noirs take place mainly in small towns, suburbia, rural areas, or on the open road.
The editors of filmsite.org argue that animation, children's films, and so on are non-genre-based film categories. The non-genre based categories they list include children's films, family films, cult films, documentary films, pornographic films and silent films.
Linda Williams argues that horror, melodrama, and pornography all fall into the category of "body genres", since they are each designed to elicit physical reactions on the part of viewers. Horror is designed to elicit spine-chilling, white-knuckled, eye-bulging terror; melodramas are designed to make viewers cry after seeing the misfortunes of the onscreen characters; and pornography is designed to elicit sexual arousal.
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