Essays / The Truman Show - sociological and cultural issues [2]

Hi everyone

I am an multimedia design student and i have difficulty in writing an essay from my contextual study - media culture. The question is as following:

"Explore either realism or fantasy in film in an era of you choice.
Show how your examples reflected sociological and cultural changes of their time."

Certainly, the film that i have chosen is The Truman Show - realism.
Can anyone help me with it?
Your points, arguments, statements or anything base on the question.
Thank you very much!

Stezon