One of the stars of A Knight of the Seven Kingdoms is fueling the rivalry between the Game of Thrones and Lord of the Rings fandoms with a comment he made about the franchises at New York Comic Con.

So rich and layered was the mythology that J.R.R. Tolkien created that even though the stories of both "The Lord of the Rings" and "The Hobbit" have already been adapted to the big screen, there's ...