A Very Long Engagement

The film is set in France near the end of World War I in the deadly trenches of the Somme, in the gilded Parisien halls of power, and in the modest home of an indomitable provincial girl. It tells the story of this young woman's relentless, moving and sometimes comic search for her fiancé, who has disappeared. He is one of five French soldiers believed to have been court-martialed under mysterious circumstances and pushed out of an allied trench into an almost-certain death in no-man's land. (official distributor synopsis)