When Christopher Nolan’s sci-fi epic Interstellar arrives in theaters in early November, it will do so as the rare big budget movie that was both shot on film and meant to be exhibited on film. In an industry that has gone almost entirely digital — 94 percent of the country’s movie screens now use digital projection — Interstellar stands apart. Not only did Nolan use analog cameras to capture much of the movie, but he also convinced Paramount to distribute it, at least in part, on the clunky, expensive film reels studios have spent the past 20 years trying to kill.