Spoiler! Game of Thrones Season 3: Behind the Scenes Sneak Peek (VIDEO) Tweet January 17, 2013 at 02:07PM EST by Gina Carbone Related: Game of Thrones, Game of Thrones Season 3 , Spoilers , TV Stars Credit: YouTube Check out this cool making-of feature teasing Game of Thrones Season 3, which starts March 31 on HBO.