I saw this on Sat with my dad. he likes survival movies so I agreed to go with, even though I prefer seeing movies in my home theater.
as with every movie, I try to know as little as possible going into it. even the smallest bit of info can spoil it for me.
so with that said, the premise of wolf attacking/stalking was certainly NOT what I thought this film was gonna be about (even though you did see some in the trailer), since it's just not factual in any way.
as a person who's really into wolves (the alpha in my username is a reference to that), I wasn't able to boycott the film. not that I would exactly go out of my way to not see it, but I probably would have declined my dad's offer to go.
I don't exactly think that the prepetuation of the misconception is that harmful though. I personally think the Walking Dead/Morning After Pill was much more harmful to society.
as for the film itself, it was very average just as I would have thought, but it was fun hearing people complain about the ending.