Saving Private Ryan meets Titanic, with aerial dogfights added to the mix. That’s how I’d describe this first official trailer for director Christopher Nolan‘s Dunkirk, which follows  a previously released first trailer and teaser. The World War II true story was filmed on a mammoth IMAX scale, and it may very well join Spielberg’s and Cameron’s Oscar-winners in Academy history. Starring Tom Hardy, Kenneth Branagh, Mark Rylance, Cillian Murphy, Harry Styles, Fionn Whitehead, Aneurin Barnard, James D’Arcy, Jack Lowden, Barry Keoghan, and Tom Glynn-Carney, Dunkirk opens in theaters on July 21, 2017.