What are the social implications of different media representations of groups of people?

The TV show Misfits shows the different media representations of britishness through the young, disobedient cast. The opening of episode one highlights the social implications of the characters and their stereotypes primarily through their dress code and body language. For example wear a cap or vest top, or bra showing. The body language of Simon is composed and awkward in comparison to the relaxed stance of other characters, this suggests he is secretive and three dimensional and viewers will learn his personality through the series.
Media theorist Althusser's discusses the concept that audiences are influenced by the characters they watch. He believes collective identity is the key in modern society.