It’s no secret that movie studios make more money off of PG and PG-13 rated films. They cast a wider net, and appeal to a broader audience. But many R-rated movies have been the big award winners over the years, as well as fan favorites, and director Christopher Nolan has proven he can bring in fans no matter what rating he chooses. This was a sticking point for Nolan when he approached Universal on behalf of his production company, Syncopy, wan…