The film [Payback: Debt and the Shadow Side of Wealth] opens with an Albanian blood feud and goes on to delve into, for instance, prison systems, underpaid tomato pickers, the gulf oil spill. It's all woven together in a sensuous, oblique way that's not the same as the single-message kind of documentary we're used to, with an "answer" at the end. It's more like an exploration. Sort of like what you do with Birth of a Nation.