Saw helmer sees Nightfall August 26, 2010 Saw helmer James Wan to tackle Texan vampires? Saw helmer James Wan has signed on to direct Nightfall. The graphic novel was created by Scott O. Brown and Ferran Xalabarder; it follows a conservative Texan, David Paxton, who winds up in a prison run by vampires. According to reports the film version will be a departure from the specifics of the original, as is said to be the case with the studio’s upcoming Cowboys & Aliens. Wan’s next film, Insidious is set to debut at the upcoming Toronto International Film Festival.