Reviewed by GREG KING Director: Leigh Whannell Stars: Dermot Mulroney, Stefanie Scott, Lin Shaye, Angus Sampson, Leigh Whannell, Adrian Sparks. Australian born filmmakers James Wan and Leigh Whannell are certainly beginning to carve out a niche in Hollywood as purveyors of well crafted horror movies that have defined the genre over the past few years. They are best known as the creators of the gory Saw …