Absolutely awesome and a must-see. Towering performances from DiCaprio,Tom Hardy, Domnall Gleeson and Will Poulter (three of whom are British/Irish). Will make you feel very grateful to have been born in the age of central heating and hot running water. Those fur-traders were incredibly tough and make us all look so nesh. It might be hard to believe that a chap survived being severely chewed up by a grizzly bear if we didn't know it was based on true events. The presentation of the environmental pressures combined with the financial pressures combined with the cultural pressures was simply masterful. The interwoven narratives of the native American characters was also masterful. And the cinematography is absolutely stunning. I don't have a bad word to say about it. Go and see it at once.
If you go down to the woods today, you're sure for a big surprise! Make sure you watch it on a huge screen to get the full heft of its epic proportions and gorey detail. DiCaprio is in nearly every frame of its overly long 156 minutes but he shouldn't have had much trouble with his lines - he does have a great range of grunts and groans though. It's difficult to really engage with any of the characters, so nature is the real star. Entertaining but also very harrowing. You'd be daft to miss it.