Directed by Sam Mendes and based in part on an account told to Mendes’ grandfather, 1917 tells the story of two young British soldiers – Schofield (George MacKay) and Blake (Dean-Charles Chapman) – during the First World War who are ordered to deliver a message calling off an attack that will stop 1,600 men from walking straight into a deadly trap. This message is especially important as Blake’s brother is due to take part in the attack, but it is a race against time.