 Complete the following phrase:  HBO ordered the seventh season on April 21, 2016, three days before the premiere of the shows sixth season and began filming on August 31, 2016. The season was filmed primarily in Northern Ireland, Spain, Croatia and Iceland. Game of Thrones features a large ensemble cast, including Peter Dinklage, Nikolaj Coster-Waldau, Lena Headey, Emilia Clarke and Kit Harington. The season introduces several new cast members, including Jim Broadbent and Tom Hopper. The series received 22 nominations for the 