Sunday Preview: 'Dunkirk' is Christopher Nolan's War Masterpiece

It's been two years since Christopher Nolan's Interstellar underwhelmed audiences, and now the Dark Knight trilogy director is looking to make amends. 

His new movie, Dunkirk, out next summer, looks to be a grim WWII epic with an impressive cast, including Tom Hardy, Cillian Murphy, Mark Rylance, Kenneth Branagh, and....Harry Styles?! 

Yes, the former 1D band member is making his first big-screen debut here, but don't let that distract you from the impressive imagery and the horrors of war. 

Check out the new trailer for Dunkirk here: