He is the filmmaker who saved Batman, whose intricately choregraphed sci-fi, crime and war epics ushered in a new era of blockbuster filmmaking. His films are large, loud and bursting with the sort of clever, complex themes one might usually find in a tricksy arthouse feature. He likes to confuse us, basically, and his name is Christopher Nolan. The British-American auteur is among the most bankable directors in cinema – a new Nolan film means big names, big ideas, and big business for everyone involved. With the much-hyped arrival of his 12th film, the Cillian Murphy-led Oppenheimer, which opened in cinemas July 21st, this is the perfect time to catch up on Nolan’s sublime back catalogue. These are his biggest cinematic hits…