E: We see the 'chav' costumes on the boys who arrive late, contrasted with the posher, richer costumes of the hosts of the party. These contrast further with the grungy dark costume of Sid, and again with Cassie's classical gold dress and flowing hair.
E: On first reading, the chav image seems to conform to stereotypes - the director is feeding the audience with a representation of age which we expect. It does not challenge us to think beyond this stereotype. However, the multiple representations also suggests the ideology that the stereotypes are wrong; there are many different 'types' of teenagers, who differences should be celebrated (but perhaps are not by society).
