History will record the Battle of Dunkirk as a British/Allied defeat, as the Germans ultimately captured the pocket and inflicted over 60,000 casualties on the Allies. However, over 300,000 Allied troops escaped, living to fight another day. This, and the method to evacuate them - the large scale use of civilian craft of all shapes and sizes, bolstered British morale and ultimately kept Britain in the war.
The inspirational nature of the event is captured well in this movie, as are the actions during and leading up to it. Quite gritty in showing the bravery involved, sacrifices made and against-the-odds nature of the event.
Good performances by the main actors - John Mills as Corporal Binns and Richard Attenborough as John Holden. Supporting cast are a mixed bag, varying from solid to serious over-acting.
Overall, a great depiction of a momentous event.