I would agree with the first reviewer, this is a very good telling of a true story, showing the courage and determination of the merchant service during WW11. The event is well told, with a good pace to the film. The acting is good and is suitably understated. The viewer is given a good sense of what it must have been like for the men concerned, who dealt with a very dangerous situation in a most matter of fact way. I would recommend this film. It is also a film, in my opinion, which can be watched many times and its fascination still holds the viewer.