This is an excellent WW2 propaganda film from Powell and Pressburger. It is a tribute to the people of Holland and their brave efforts to help British airmen trying to escape capture by the Germans. Especially, it highlights the women, the two main characters, Els Meertens and Jo de Vries, being portrayed superbly by Pamela Brown and Googie Withers respectively. Although the Germans are very much in the background, their menace and the danger of the aircrew's situation is palpable. This is especially so in the church, a very tense scene, where the ominous reflection of the German officer is seen in the mirror above the organist as he bravely plays the Dutch national anthem.
Also, the action sequences at the beginning of the film, showing Wellington B Bertie carrying out it's bombing mission, followed by it's demise, are very realistic and convincing.
This film moves along at pace and the acting is very effective, nicely understated. There is no music on the soundtrack; it isn't needed. This is a superb touch by P. and P.
This is a really good war/resistance film which, I believe, can be watched time and time again. I would recommend it to anyone who likes a good war thriller and not only to those of my ilk particularly interested in old black and whites.