I will be very surprised Lee Byung-Hun does not get the best actor prize in Korea this year. The tranition from the real king to the impostor/actor was absolutely amazing (to say the least) making it easy to know which was which; very important in my ability to follow the story as it unfolded. The only confusion I felt was which high government official was which - all the way through the movie, the only way to figure out who was whom was if they "stepped out" when the king called on them; they all had the same clothing, hat, beard, mannerism (I do realize that this is how it was back then but still I kept asking myself, "now, who the heck is this nut?")Overall, it was a wonderful movie with high production value that I thoroughly enjoyed. It could have used better editing about 15 minutes from the end of the movie tho - it dragged a bit where the lighting was way off - the reason for a 9 out of 10.Cinematography was phenomenal!