Desc: Envoy: Shark Cull: Directed by Andre Borell. With Eric Bana, Layne Beachley, Tom Carroll, Paul de Gelder. Off the beautiful beaches, among breathtaking coral reefs of Australia lurks a deadly and indiscriminate killer. It's thirst for blood kills 1000s each and every year. It's not sharks. It's the Government Shark Control Program.