Having launched his career with his original screenplay for 2005's Mr. & Mrs. Smith, Kinberg, 41, has become the rare A-list writer to transition to an equally hot producing career. He is keeper of Fox's lucrative X-Men universe, citing 2014's X-Men: Days of Future Past (his highest-grossing hit with $748 million worldwide) as his biggest producing challenge. "It was a very ambitious swing to get two casts [X-Men and X-Men: First Class] together to do a time-travel movie that was really complicated," he says. He still writes (Fantastic Four, opening Aug. 7, which he produced as well) and also will wear both producing and writing hats on a 2018 untitled Star Wars stand-alone film. Hollywood's reliance on sequels, remakes and reboots doesn't mean originality is dead, he insists: "So many of my favorite films, whether it's The Godfather: Part II or Empire Strikes Back or Terminator 2, were either sequels or based on other material. The challenge is keeping these films fresh and unique and their own experience and their own event."