I watched both this documentary and the Christopher Nolan film (staring Cillian Murphy). While Cillian Murphy was indeed superb as Oppenheimer, the film seemed to focus on just "being entertaining". On the other hand, the documentary version covered a lot of interesting material, not covered in the movie. As a fan of history, I found the documentary to be much more in depth and thought provoking than the film. I really cannot fault the cinema version, nor the viewer who loved it. It just depends on what your preferences are. If you want to see a relative accurate history of Oppies life, watch the documentary. If you prefer to be entertained, watch the Nolan film. (Of course, there's nothing to keep you from watching both.) For my tastes, I preferred the documentary.
