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  ===Marketing===
  A half-hour documentary, ''Game of Thrones: A Day in the Life'', aired on HBO on February 8, 2015. It covered one day of production of season 5 on three sets in Belfast, Dubrovnik and Osuna from the viewpoint of key crew members. The first official trailer for season 5 was released on January 30, 2015, and the season's second trailer was released on March 9, 2015. The world premiere of the first episode of the fifth season was held at the Tower of London on March 18, 2015.