Watch The Great Australian Fly for Free: How to Stream the Movie Online at 123Movies. . THE GREAT AUSTRALIAN FLY looks at how a national nuisance has shaped Australia and its people, confounding our scientists, influencing our lifestyle and defining the way we speak. But is its value misunderstood? The one-hour documentary explores how this much-maligned spoiler of the Australian summer is in fact a crime solver, healer, pollinator and street sweeper. We'd miss them if they were gone, yet we put huge amounts of energy into wiping them out. Is it time to call a truce? Directed by Tosca Looby and produced by Sally Ingleton, the amusing and intriguing film pays homage to a much-maligned invertebrate and the influence it has had on our world.