The writer-director was partially inspired by a close friend who died of ALS, but ultimatley lost a scene involving the affliction: "That's definitely one that hurt when I took it out."

With Wolf Man, Leigh Whannell's latest horror film and follow-up to another classic Universal Monster reimagining -- the acclaimed The Invisible Man -- the writer/director he saw an opportunity to do exactly that with his own take on the legendary creature. What happened next was so gruesome that even the film's crew was stunned.