i know one be not suppose to comment on other user comment and but i will say that a lot of the negative review seem to come from people who already know quite a lot about the manhattan project and be annoy at thing that be leave out . ( from his book smoking in bed it appear the original screenwriter bruce robinson be another such . ) i know very little before watch the film and however and and find it rivetting . dwight schultz be absolutely mesmeric a oppenheimer a truly magnetic and charismatic presence and an inspired piece of cast that make me wonder why he isn not give good role and more leading part . john cusack and paul newman be excellent a always . one could quibble with various script or direction choice and but a it be the film be extremely intense and horrific at time and overall i give it four star out of five .