I just got to see this last night... Hubby and I really liked it.
I can see why some would feel it was lengthy and the scenes drawn out... but actually I think that's one of the points of the film. The isolation, and what must have been the excruciating passing of time to the wounded and abandoned protagonist... And also his understanding (and to a certain extent) his appreciation of the wild and the landscape. To be fair, I don't think there is much comparison with Dances with Wolves and Last of the Mohicans (both excellent films). This was a survival/revenge story (albeit deviating wildly from actual events) and part of its beauty was that very shot was pretty purposeful and meaningful - it reminded me a lot of The New World (same cinematographer, incidentally). Now, that film would likely bore a lot of people to tears, but it was also one of the most beautifully made films I've ever seen.
Don't get me wrong - I like my fill of drama and action as much as the next person, but some films are a lot more understated in this regard. The fates of many of the animals certainly made me sad, too, but many (not all) of the incidences were fairly representative of the period (much like the appalling attitudes of the whites towards the native people).
Probably the only thing that bothered us really was the wild not (in plausibility) killing off Glass - I think I would have died of hypothermia 10 times over by half way through the movie, lol! But hey, it's a film
So, not out to argue against you all, just a different reception I guess
I look forward to a second viewing at some stage.