Story predictable, white men raping another culture for their resources. One of their own tries to stop them because they know its wrong. Seen it. Visually, I've seen better on the Nat Geo channel. So I'm not sure what all the fuss has been about, really.
Denzel is of course excellent, that's to be expected, but Gary Oldman's performance was very good as well. Which helped a movie that moved slowly in places but overall was attention keeping for the most part.