In this essay, I want to provide an introduction to Aristotle's theory of the Greek Tragedy, which he outlines in his book, the Poetics. Many philosophers since Aristotle, including Friedrich Nietzsche and Walter Benjamin, have analysed tragic art and developed their own theories of how it works and what it is for. What makes Aristotle's theory interesting is that it is as relevant to art today as it was in Ancient Greece because it explains the features of not just tragic art, but of the films and stories that we enjoy today. I will explain the features that Aristotle says make a good tragic play and give examples of them from popular culture. The examples I give will be from tragedy, but also from romance, crime and fantasy to demonstrate how he has outlined, not just the features of Greek Tragedy, but also the internal workings of the drama that we enjoy today. The contemporary relevance of Aristotle's theory is in the fact that the features he outlines are basic features of great stories, which I think is best illustrated by applying Aristotle's analysis to popular Hollywood movies.