With "Game of Thrones" season four premiering on April 6th, HBO's released "Fire and Ice: A Foreshadowing," a 15-minute special that looks back at season three and ahead to what's next on the hit fantasy series. The cast and producers tend to play things very close to the chest, so there aren't too many juicy tidbits about what's too come, though there is some new footage. "There is tremendous clamor for revenge, especially in the wake of the Red Wedding," says co-showrunner David Benioff. "Some of the most shocking and mindblowing scenes of the entire series come at the end of the end of this coming season." The cast members also all share their favorite characters and answer questions from Twitter.