I'm kind of on the fence about this one, and not the least about whether this can actually be considered a werewolf movie. The wolf's POV is interesting and executed fairly well, but the film itself feels a bit like an overly long police procedural with very few horror elements.
Unintentionally ethnically insulting Hollywood at its finest. "Man, those Native Americans got a raw deal. Y'know what would really set the record straight? Making a horror movie about Indians turning into wolves and prowling the city at night tearing up the descendent of settlers because whitey has it coming! That just feels right somehow. That oughta really wake people up and restore peace and dignity."
"What struck me in 1981 and again recently about Wolfen is how much it reflects the same grandiose '60s blend of leftist idealism, countercultural eclecticism and big-screen (and multi-track audio) experimentation." - Jonathan Rosenbaum (Cinema Scope, Summer 2011)