Watch Battle of Jutland: The Navy's Bloodiest Day for Free: How to Stream the Movie Online at 123Movies. . Documentary about the Battle of Jutland, a naval battle during World War I between the British and German fleets, which took place on 31 May and 1 June 1916 in the North Sea, off the west coast of Denmark. It re-creates the events of the battle and examines why the number of British warships that sank was so much higher than the number of German ships that were lost. Shown to commemorate the 100-year anniversary of the battle.