Angelina Jolie has premiered the trailer for the war film Unbroken. Jolie directs this film which shows the life of World War II hero and Olympian Louis Zamperini. British actor Jack O’Connell (Skins) plays Zamperini who is on a warplane with two comrades when it is shot down landing in the Pacific Ocean. They survive seven weeks at sea only to be found by the Japanese Navy, and are taken to a concentration camp for captured US soldiers. Connell’s co-stars include Domhnall Gleeson, Garrett Hedlund and Finn Wittrock. It will open in UK cinemas on the 23rd of December 2014.