During the Blitz of World War II, a female screenwriter works on a film celebrating England's resilience as a way to buoy a weary populace's spirits. Her efforts to dramatise the true story of two sisters who undertook their own maritime mission to rescue wounded soldiers are met with mixed feelings by a dismissive all-male staff.

Carried along by a winning performance from Gemma Arterton, Their Finest smoothly combines comedy and wartime drama to crowd-pleasing effect.