Bryan Singer was originally slated to direct the next installment in the X-Men franchise, unfortunately he has been caught up with his newest film Jack the Giant Killer. Warner Bros again blocks Singer from directing another X-Men movie. They did so with X-Men: Last Stand when Singer was directing Superman. He is still signed on as producer though, and may get a chance to direct another X-Men movie as X-Men: First Class is only the beginning in a planned new prequel trilogy.