Billy Mitchell's true story with great actors. Gary Cooper's portrayal of Mitchell is spot on according to what I have read about the trial and the events leading up to it and the proceedings.
If you are looking for 'physical action' look else where, but if you want to see exposed how the military protected their self interests, you could not do better than this movie about a man that had the foresight to see Pearl Harbor and the powers to be turned a blind eye and deaf ears.