The Shooting Party

Autumn, 1913: on the eve of the Great War, a small party of lords and ladies gather at the Hertfordshire estate of Sir Randolph Nettleby. A code of propriety governs all: dress, breakfast, relations with the estate's peasants, courtship, shooting, adultery. Lionel Stephens, who is courting Sir Randolph's daughter, gets into a shooting competition with Lord Gilbert Hartlip; Lord Gilbert's wife carries on discreet affairs; a pamphleteer circles the estate calling for no more killing, and Sir Rober (imdb)