Brilliant dialogues. Keeps Engaged most of the times! Don't watch this movie if you want to see how the first Atom bomb was made or the WWII ended.
Watch it if you love brilliant dialogues. The dialogues are master piece and so is the switch from current time frame to the past and back.
The characters have played their roles brilliantly. Murphy and Robert have done justice to their characters, so has Matt.
The movie is long, 180 plus minutes and that is where it captures the details and the essence of the court room drama. Doesn't stay in one time frame for so long that you get bored and swaps to past frame to make it relevant and a bit confusing at the same time (don't get me wrong with confusing word as it might get tricky if you don't follow the dialogues).
This is not Interstellar, so don't go expecting to see space crafts and bombs and fights. The fight is in the courtroom for everyone to see.