I knew the story being a history buff. I was very disappointed when I saw how he portrayed the scale of this. If I didn't know my history I would have thought 10 French guys stayed behind to fight off the Germans, with 3 RAF fighters to protect them from the Luftwaffe. While 5,000 guys were being save by 1 destroyer and 50 small boats.
This should have been epic. With the entire French 1st army staying behind to hold off the Germans till they ran out of food and ammunition. 16 squadrons and some 3,500 sorties flown by RAF pilots to protect those on the beach. Some 340,000 men saved by a flotilla of 40 destroyers, nearly 400 civilian craft and 800 total vessels. CGI that crap in, give it the scale it deserved.
He just made a different film that focused on a handful of individuals instead of trying to recreate the entire battle.
I liked it, saw it on 70 IMAX, and I like how he tied, what started out as three individual stories, together as the movie progresses.