The One Direction star appears in Christopher Nolan’s new World War II epic opposite Tom Hardy, Kenneth Branagh, Mark Rylance, Cillian Murphy and Fionn Whitehead.
The Dark Knight director wrote the screenplay for the period blockbuster about the hundreds of thousands of British and Allied troops surrounded by enemy forces on the beach of Dunkirk.
The Dunkirk trailer dropped on Friday [Warner Bros]
Speaking of casting Harry in the role, Christopher told the LA Times: “When we put the cast together, we had some established names but for the guys on the beach, we really wanted young unknowns.
“He’s not that unknown, but he’d never done anything as an actor before. So he auditioned. I auditioned literally thousands of young men with different combinations of young men. And he had it.”
The film is Nolan’s first since 2014’s Interstellar, with production taking place earlier this year on location at some of the actual places the tragic events occurred.
Dunkirk is scheduled for release on July 21, 2017