When we last we saw George MacKay running, he was sprinting full-tilt across a World War I battlefield. In “1917,” the British actor played a soldier tasked with delivering a message that a soon-to-be-launched offensive is doomed to fail.
In “Munich — Edge of War,” the year is 1938 and the setting is London, then Munich. But MacKay is again bearing urgent communications that sometimes cause him to race down city streets — like to hand the Prime Minister Neville Chamberlain (Jeremy Irons) news of Germany’s latest actions against Czechoslovakia.
