You never know what you’re going to get next with Christopher Nolan. One moment, he’s helming one of the biggest pre-Avengers comic book series with his Dark Knight Trilogy, and the next he’s experimenting in the realms of sci-fi and historical narrative. Back to his old tricks again, Nolan is currently working on a rather enigmatic film that, per his usual process, is being kept tightly under wraps. Details are scarce, but according to one of the film’s actors, Twilight veteran Robert Pattinson, it’s going to be a pretty long sit. And when he says long, it’s about three movies’ worth of length.