nuclear energy
![](https://cdn.abcotvs.com/dip/images/14479972_oppenheimer-split-img.jpg?w=660&r=16%3A9)
Who was the real Oppenheimer, played by Cillian Murphy?
With 13 Academy Award nominations and a pile of other awards under its belt, Christopher Nolan's "Oppenheimer" is a heavy favorite to dominate the Oscars Sunday night. But who was J. Robert Oppenheimer?