Christopher Nolan's epic biopic proves to be a beautifully chaotic examination of a brilliant but complicated man. Warts and all, so to speak. Based on the book American Prometheus: The Triumph and Tragedy of J. Robert Oppenheimer , the story telling jumps back and forth through several periods in history in ways that feel random to show us how Oppenheimer became the "father of the Atomic Bomb", as well as the effect his work at Los Alamos had on him and his eventual fall from grace. And yet somehow it all pieces together perfectly. The movie should feel jumbled, but it unravels the man's story smoothly. It simply flows in a way that makes it as gripping as it is fascinating. But it would be nothing - well, nearly nothing - without the incredible cast that brings this story to life. So much so that t he passions of all those involved at Los Alamos - however misguided - are almost palpable. It  is a mammoth cast, filled with famous names and great talent, it's any