Teen films target teenagers by featuring topics relevant to their lives like education, relationships with friends and family, and discovering their identity. Teenagers watch teen movies because they can relate to the situations and problems portrayed. Kids and adults also watch teen movies, with kids experiencing curiosity about teenage years and adults seeking to understand teenagers. Common genres of teen movies include romance, comedy, horror, and action. Conventional themes include love, relationships, rebellion, partying, crime, and achieving the American dream. The film opening challenges some conventions by focusing on a pregnant teenage girl, with binary oppositions around happiness and sadness, love and hate, and past and present. Costumes and music are used to convey the mood of characters and