FILE - In this Wednesday, March 29, 2017, file photo, Christopher Nolan, director of the upcoming film "Dunkirk," discusses the film onstage during the Warner Bros. Pictures presentation at CinemaCon 2017 at Caesars Palace in Las Vegas. His latest film, “Dunkirk” takes him out of the fantasy world and into reality and the evacuation of the Allied soldiers from that beach in France in May and June of 1940. Nolan spoke to The Associated Press about “Dunkirk,” which sails into theaters on July 21. (Photo by Chris Pizzello/Invision/AP, File)