Their Finest is a 2016 British war comedy-drama film directed by Lone Scherfig and written by Gaby Chiappe, based on the 2009 novel "Their Finest Hour and a Half" by Lissa Evans. The film stars Gemma Arterton, Sam Claflin, Bill Nighy, Jack Huston, Jake Lacy, Richard E. Grant, Henry Goodman, Rachael Stirling, Eddie Marsan, Helen McCrory, and Claudia Jessie. The film tells the story of a British Ministry of Information film team making a morale-boosting film about the Dunkirk evacuation during the Battle of Britain and the London Blitz.