Good list BudW.
Not enough of them to put on the list. That is the problem.
Another movie that should be seriously considered as a 'great' is "Operation Crossbow". The test flying and manufacture and ultimate destruction of the German flying bombs.
Also "The Heros of Telmark". Destruction of Germany's heavy water plant in Norway.
And "Dunkirk", was one of the great too. With John Mills.