I realize the movie was primarily about Oppenheimer himself, but his story could have been told in half that time. The physics talks were too detailed for average audience, and the investigations and politics were too much and way too detailed also. I found very little entertainment value with this movie, and wasn't impressed with audio-visual either. I think the main character acted very well, so did Robert Downey Jr.
I went to this movie with big expectations, but I think had the PBS Frontline show covered this story, it would have been lot shorter, more informative and entertaining.