James Wan and Leigh Whannell knew they wanted to make a film. They knew they had barely any money. They knew they could afford one room, and a couple of actors. They figured they could keep costs down by chaining the actors up.

Made for around $1m in the end, the journey to 2004's Saw was a difficult one. And its behind the scenes story is told in this episode.

Plus, actor Domnhall Gleeson and director Michael Pearce then join Simon to talk about the new Apple TV+ thriller, Echo Valley, and more...

Learn more about your ad choices. Visit megaphone.fm/adchoices