Unrealistic
Besides the fact that this film is very unrealistic, it's a good film. But most people i've talked to say they loved it beacause it's so realistic... How? A guy was mauled by a bear at 50 degrees below zero, was half-assed sewn together after losing massive amounts of blood... And lives...
Realistic huh? One moment he can't move a finger in his body, the next he can suddenly crawl for miles? Just so there can be a plot, no other logical reason.
That amount of injury would kill or incapacitate a person, even if you lived right next to hospital in the year 2016. The fact that he's fighting, hunting and climbing the next few days is completely unrealistic. Period.