The Revenant is a feat of strength, a relentless story of pure willpower. Almost all of it is filmed in the wild, with natural lighting. The violence is in a way too realistic to actually be realistic, if that can be understood. By the end I was exhausted. In fact I was silently pleading with the movie to end at least ten minutes before it did. I was quite literally squirming in my seat. Despite this, there is no denying it is an incredible production worthy of recommendation.
Below contains minor spoilers.