which Whannell co-wrote and revised Bousman's original script, titled The Desperate. Whannell also served as an executive producer. Around the same time, Whannell returned to collaborate with Wan; they wrote a film called Dead Silence, which Wan directed. It was originally slated for a 2006 release, but small problems with the title pushed the release date back to March 2007. In 2006, the duo composed the story for Saw III; Whannell wrote the screenplay for the third time. It was again directed by Bousman and was released on 27 October 2006. Whannell has a featured cameo, reprising his role as Adam. Saw III grossed $33,610,391 on its opening weekend, making around $129,927,001 worldwide (after 38 days in cinemas) and is currently the most successful Saw film to date. Whannell's writing partner, Wan, was chosen to direct the film Death Sentence, the first feature film with their participation that they did not write themselves. Whannell has a small role as Spink in Death Sentence. In 2008, Whannell took off his "writing hat" to perform alongside Nathan Phillips in Dying Breed, a low-budget Australian horror film about a team of zoologists exploring the Tasmanian wilderness to locate a creature thought extinct, the thylacine, or Tasmanian tiger. Instead, they wander into the domain of cannibals who retain their ancestor Alexander Pearce's taste for human flesh, and become prey. Before and during the production of Saw, Whannell sought medical treatment. "I was going through a bit of a tough time healthwise and suffering anxiety," says Whannell. "The anxiety manifested itself in physical ways. I was suffering headaches everyday for nearly a year. It was serious stuff and really started affecting my life." Spending time in a hospital inspired him to endow the lead antagonist of the Saw series, John Kramer / Jigsaw, with cancer. "It was weird to be 25 and sitting in a neurological ward and I'm surrounded by people who actually had brain tumors. It was very scary and it was my first proper look at mortality. I really wanted to get my health back and it really hammered home how important good health is. If you've got that, you've got everything". Whannell wrote the script for and acted in the 2011 paranormal thriller film, Insidious, which was directed by Wan and produced by Oren Peli. In relation to the Saw franchise, Whannell stated, also in 2011: It's hard to say definitively,