The biggest part of the story, besides the fact that the film exists at all, is that Ryan Reynolds, who played Wade Wilson/Deadpool in X-Men Origins: Wolverine, is rumoured to star again as the titular anti-hero. At the time of writing, however, that's all the reports are - rumours. Reynolds has been active behind the scenes on a Deadpool movie for a solid decade, lobbying to have the character appear and, once he did in Wolverine, trying to get him his own stand-alone film. It was Reynolds who provided the body model for the test footage and this all feels very much like a major passion project for the actor. We certainly can't see Reynolds not wanting to return to the character he's fought so strongly for - after the disaster of Green Lantern he could do with a big hit - and he's a big enough face for Fox to be happy to welcome back. However, as evidenced with Channing Tatum replacing Taylor Kitsch as Gambit in X-Men they're not above switching things up. Keep an eye on casting reports.