Game of Thrones (season 3) is a movie.
The third season of the fantasy drama television series Game of Thrones premiered in the United States on HBO on March 31 , 2013 , and concluded on June 9 , 2013 . The season is based roughly on the first half of A Storm of Swords ( the third of the A Song of Ice and Fire novels by George R. R. Martin , of which the series is an adaptation ) . The series is adapted for television by David Benioff and D. B. Weiss . HBO renewed the series for a third season on April 10 , 2012 , nine days after the second season 's premiere .