HBO has unveiled both the official poster and several new clips from the upcoming fifth season of its big-budget fantasy drama "Game of Thrones". The one-sheet itself raises eyebrows, seemingly drawing together a shot from the show's fourth season with that of Tyrion Lannister (Peter Dinklage) on the prow of a ship. The new clips have both been put through some kind of depth-of-field filter to appear as though they are a vision of the three-eyed raven from the show.