Director Leigh Whannell ... the lack of hair on a man turning into a wolf wasn't in line with its lore and had hoped to see a "hairier" transformation. Regardless, it won't be long before fans ...

It's been nearly a century since the first wolf-man took a bite out of the big screen, when 1935's Werewolf of London — yes, his hair was perfect ... born filmmaker Leigh Whannell strips ...