I went to see this with one of my sons and son in law. Each of us was hugely disappointed by the film. It was probably an hour too long and the sham ‘trial’ (this is not a trial) was laboured for far too long as everyone knew how it would turn out. Some scenes were breathtaking, but it was let down overall by spending far, far too much time on other parts of the story away from the actual development of the war winning bomb. Some of the dialogue was lost beneath the incessant musical score which drowned out on-scene action at times. Maybe American audiences will lap this story up, but for 3 Brits in their 30s, 40s and 50s it was a long evening wasted.