The trailer didn't do this movie justice at all. It's why it took me so long to get around to it I think. Just noticed it's been trending and at the top of Netflix consistently since it dropped on there. I'm glad I finally decided to give it a go. Pretty great performances, especially Hugh Bonneville. Has quite a slowish start, but it was well worth sticking with as it soon picks up. Once it grips you it does a good job keeping things interesting as well. Quite a tense and enjoyable movie. Recommend giving it a shot.