Considering this trailer for the fifth season of Game of Thrones was recorded surreptitiously last night on someone's phone in an IMAX theater, the quality is surprisingly good -- if you can ignore a few shadows, and the Mystery Science Theater 3000-like silhouetted heads in the audience.
It seems likely HBO will release the official version over the weekend, but if you don't want to wait until then, this video offers an enticing (if echoey) preview of Season 5, backed by TV on the Radio's cover of David Bowie's "Heroes."
Adapting material from George R.R. Martin's fourth and fifth novels, A Feast for Crows and A Dance with Dragons, the new season expands the action to Dorne, and follows the fugitive Tyrion and Varys across the Narrow Sea, on their path to Daenerys Targaryen. But you can see all of that and more in the trailer.