James Gunn had zero plans to make a 'Clayface' movie until he received a "wonderful idea" from writer Mike Flanagan.The DC Studios co-chairman has revealed it wasn't until he received a solid pitch from the acclaimed horror writer - who is also working on the upcoming 'Exorcist' reboot and has penned the likes of 'The Haunting of Hill House, 'The Fall of the House of Usher' and 'Doctor Sleep' - that he considered making a film all about DC Comics' shape-shifting supervillian. He told io9: "I didn’t plan on making a Clayface movie. Mike came in. He pitched this wonderful idea. I was like, ‘Damn, I can’t believe you got me to want to make a Clayface movie.’ But he’s got to write the script and who knows how that’s going to work. He goes and he writes the script.