The movie tells the story of a small Norwegian fishing town which has been occupied for some time by German troops. Faced with the ever increasing intolerance, oppression and ruthlessness of the occupying force, the villagers carefully plan a rising, ably assisted by a British agent disguised as a high German official.
This powerful film has aged extremely well, has lost none of its appeal and is still deeply moving. The cast is superb: Ann Sheridan and Errol Flynn (who, for a change, managed to cast off his swashbuckling image so as to be just one fine performer among many others) are the gallant leaders of the resistance, Ruth Gordon and Walter Huston are the gentle town dignitaries who are drawn into the fighting only reluctantly, and Helmut Dantine plays the nasty German town commander, Hauptmann Koenig. Moreover, it becomes obvious that the director made a great effort to find the right actor for even the smallest supporting role.
Ironically, Austrian born actor Helmut Dantine became rather well known in the 40s for his performances of a typical nasty Nazi. In real life he was a victim of the Austrian Anschluss and had to leave his native country as a teenager after his release from a concentration camp where he had been put due to the important role he had played in the Viennese Anti-Nazi Youth Movement.
What I also found positive is that the ending is not overly pathetic (like, for example, "Mrs. Miniver"),but simply gave people hope for a brighter future.