The Concubine (2012) (Blu-ray release 2013-7-18) is a Korean period drama about a concubine to the king, with everyone around her scheming, betraying and/or killing each other in order to gain power.  Far exceeding my expectations, this movie successfully rises above the other similar ones by the use of sexual elements – not just visually but integrated to the story as well.  Without spoiling the movie, I can only say there is an amusing sex scene and a shocking scene about a eunuch.  So this movie not only has a strong story but it is entertaining and attractive as well.