Following yesterday's 25-minute Season 3 recap, HBO has released a new Game of Thrones featurette that breaks down the entire history of how George R.R. Martin novels transitioned to the small screen. Charles Dance, who plays Tywin Lannister on the hit series, narrates this humorous five-minute video, featuring creators/executive producers David Benioff and D.B. Weiss breaking down the arduous process of how this series came to life. Learn more about this epic series before Season 4 debuts Sunday, April 6 at 9 PM ET with "Two Swords".