Game of Thrones is an upcoming American medieval fantasy television series created by David Benioff and Dan Weiss for HBO. The series, based on author George R. R. Martin's best-selling A Song of Ice and Fire series of novels, chronicles the violent dynastic struggles among noble families for control of the Iron Throne of Westeros. The series will debut on April 17, 2011. In the UK, the series will debut on Sky Atlantic on April 18, 2011