Interstellar is no longer Christopher Nolan‘s longest film.According to the director himself – via a new interview with Total Film – his upcoming film Oppenheimer will be his longest movie to date, running longer than Interstellar‘s duration of two hours and 49 minutes.While he has yet to reveal the exact time of Oppenheimer‘s runtime, Nolan shared that it’s “kissing three hours”. “It’s slightly longer than the longest we’ve done,” Nolan said.Elsewhere in the interview, Nolan spoke of the movie’s complicated lead character, saying he’s “drawn to interesting protagonists – protagonists who have ambiguity to them.