I have no idea why people are raving about this film, it's a bit crap, it's probably Oldman weakest performance to date, and the cinematography is terrible. Churchill with Brian Cox in the lead role is a FAR superior film on the subject.
As with many of the biopics I've seen recently, _Darkest Hour_ is more focussed on delivering you the facts than getting you involved with the characters. It is an interesting idea to have the majority of the story revolve around the of whether or not to sue for peace. That as a core concept in so much as the question of "Do I take the guarantee of saving my country or do I take the risk of saving the world?" and beyond that "Is there even a right answer to that question? And who am I to decide something this big?" is a great philosophical centre for a movie. But I never felt like I knew why any of these people had the answers that they gave. I get that in a historical context, these aren't characters they are real life people, so they answers they had are the answers we see, but again, we are only given the _what_, not the _why_.
Except you can throw all of that away because here comes Gary Oldman in his Oscar nominated transformation to make this movie 100% worth watching.
_Final rating:★★★ - I liked it. Would personally recommend you give it a go._