Paul Greengrass’s The Green Zone centres on one of the fundemental questions surrounding the Iraq war – When American and British forces withdraw completely from Iraq – a military strategy which seems unthinkable seven years into the campaign – will the lasting legacy be peace and democracy? Or will it will be a deep-rooted suspicion that the infamous weapons of mass destruction, the supposed justification for the invasion, never existed? It’s an interesting question, though the answers behind it are perhaps just a little too easy.