Saw 4 in the works...

"Whether film-makers Whannell and Wan, both 29, are involved or not in Saw IV, Hollywood studio Lions Gate and production company Twisted Pictures will likely go ahead with the fourth in the series.

"I don't know personally if I would want to do it or not," Leigh Whannell said of the potential fourth film.

"As a creator, I'm starting to feel like I'm painting with the same brush.

"I'm really happy with the third film and in some ways I would not mind going out on top." Read more of the story at SMH.com