How are binary oppositions established in teen films?

Binary oppositions are a pair of related terms or concepts that are opposite in meaning. These are common in teen films and usually feature at least 3 binary oppositions. Common oppositions in teen films usually associate with popular vs unpopular, rich vs poor, beautiful vs ugly and old vs young. An example of binary oppositions in a teen film is in '10 Things I hate about you', where we see different groups of teenagers in high school which follow groups such as: popular group, clever kids, rasta's, coffee drinkers etc. We also see a clear divide in groups of people when a group of 'popular' girls pull up in a blue convertible whilst another character is driving an old car playing rock music and wearing all black, this is a clear opposite and a binary opposition. The colours and music also reflect the oppositions. Another example of binary oppositions in a different teen film is 'Romeo and Juliette" where we see 2 gangs montague vs capulete and the binary oppositions in these gangs are: Montague are white American whilst Capulete are Latin American and we also see a difference in costume, montague wear Hawaiian shirts and are casual and on the other hand Capulete are wearing sophisticated clothing and seem much richer. Binary oppositions are made to keep the story moving forward, it creates a sense of drama in the film because we see these oppositions going against each other creating a story line.