Watch the Extended Featurette for 1917 Get a behind-the-scenes look at the upcoming movie, set in World War I, starring George MacKay (Captain Fantastic) and Dean-Charles Chapman (Game of Thrones) as two young British soldiers who are given a seemingly impossible mission. The pair must cross enemy territory to deliver a message that will stop a deadly attack on hundreds of soldiers. 1917 is directed by Sam Mendes and will be released in select theaters on Christmas, and everywhere on January 10, 2020.