Christopher Nolan feels “great” about the state of the movie industry after ‘Oppenheimer’ became the “most successful film” he’s ever made. The 53-year-old filmmaker has insisted movies are “doing great” following the huge success of his billion-dollar motion picture, which featured the likes of Cillian Murphy, Emily Blunt, Matt Damon, and Robert Downey Jr. He told Empire magazine: “I’ve just made a three-hour film about Robert Oppenheimer which is R-rated and half in black-and-white – and it made a billion dollars. “Of course, I think films are doing great. “The crazy thing is that it’s liter…