1940, London, the Blitz; with the country’s morale at stake, Catrin (Gemma Arterton), an untried screenwriter, and a makeshift cast and crew, work under fire to make a film to lift the nation’s flagging spirits; and inspire America to join the war. Partnered alongside fellow screenwriter, Buckley (Sam Claflin) and eccentric actor Ambrose Hilliard (Bill Nighy), the trio set off to make a film that will warm the hearts of the nation and capture the imagination of the American population.

Their Finest is out in cinemas from Friday.