A third sequel in The Bourne Franchise looks to be moving properly ahead, after Universal commissioned co-scripter of The Bourne Ultimatum, George Nolfi, to pen a fourth flick in the outstanding and hugely successful series. Both director Paul Greengrass and Matt Damon said they'd come back if the story was right, so it looks like a quadrilogy for the best spy series ever (Sorry Bond, but you know it's true). Greengrass has previously said of another instalment: "We love it, but none of us would want to go again unless we’re sure there’s a worthwhile film". Giving the ability of both these guys and the fussiness they've both shown with each passing project, this means we're probably in store for another stunning film from them. The lads, who have become good friends, just wrapped The Green Zone together also.