As a combat veteran and a watcher of dozens of historical based war films, I must be brutally honest. This is a boring and very slowly presented film. As all historical based films are, we already know the ending, which automatically takes away one third of our viewing interests. The film simply shows thousands of soldiers and sailors, standing on a beach or dock ,waiting to be bombed or shot at by German Aircraft. Several people in the theater got up and walked out. Based on my respect for the poor souls of the actual Dunkirk, I remained to the end. I really had to stretch my forgiveness, to give it a three.