Common Elements in Various Genres

Action-  Violence, protagonists, antagonists, pyrotechnics, suspense, car chases, guns,  
Adventure- Tasks/quests, outlaws, native people, Comedy- Humorous moments, exaggerated circumstances,  
Crime and Gangster- Drugs, illegal operations, secrets, corruption, 
Drama-  Dramatic circumstances, tragedy, miracles,
Epic Historical- Large scale battles, huge amount of death, based on a historical event,   
Horror- Mystery, surprises, shock, twists, murder, gore, isolation,   
Musical/Dance-  Music, spontaneous songs and dances,
Science Fiction- Fictional ideas and concepts, aliens, spaceships, alien languages, different planets, futuristic technology, monsters,  
War- Massive battles, death, hero, guns, violence, concentration camps,
Westerns- Cowboys, Indians, guns, show downs, western music, pretty girls, horses,