The WW2 life and history of Air Chief Marshall Sir Arthur "Bomber" Harris, Commander in Chief of RAF Bomber Command. He took Bomber Command from a minor, under-manned, badly equipped, low-priority unit to one of the most potent forces of the war. This all while struggling against superiors who had different priorities and against misguided agitators who had misgivings on how the war was being conducted.
Decent historical drama. Shows well "Bomber" Harris's, and RAF Bomber Command's, contribution to the Allied victory in WW2. Shows the effort Harris made in getting Bomber Command to its status as one of WW2's most potent forces, and the tough decisions he had to make along the way.
Does try to make it something more than that though, and therein lies the main negative aspect of the movie. There's is an element of revisionist history about it - all the self-indulgent pontificating from certain quarters about the morality of bombing cities. At least Harris has the last, and correct, word in that regard - winning the war is all that matters.
Does also feel quite dry in its delivery. Showing some bomber crews in action, and all the preparation and courage that goes into a bombing raid, would have gone a long way to making the movie more interesting, gritty and engaging. The bomber crews are never really made flesh, ending up just being statistics.