Watch On The Rhine (1943) ***

A little quizz: name a 1943 Best Picture winner from this description - an anti-Nazi freedom fighter and his wife escape from Europe and find themselves in a neutral city. As the Nazis close in, the hero shoots the main threat to their safety, allowing the freedom fighter and his wife to continue the fight against Hitler. "Casablanca", obviously, except that the neutral city is Washington DC in 1940, the hero and the freedom fighter are the same person, and the Best Picture award is from New York Critics Association, not the Oscars.