The Titanic director, who is planning an adaptation of nonfiction book Ghosts of Hiroshima, says Nolan’s film ‘dodged the subject’ of the atomic bomb’s devastating impact on that city
Nolan’s film tells the story of one man’s experience. Cameron is criticizing it for not telling a different story, one that focuses on the horror of the violence. It’s not a cop out to tell a different story. Cameron, while well meaning, is just full of shit here. I hope he makes his own movie exploring these subjects instead of more blue people fantasy cartoons.
Most of the movie was about the man himself, but it did end with a very clear defense of the bombings. It was a compelling defense, and I don't know if it was based on Oppenheimer's own reasoning, but it did digress from the biopic format.