Mostly eye candy
I saw an extended version of 116 minutes (that's almost two hours). In this version the pace was excruciatingly slow. The shots are pretty, but please editors, make it more snappy the next time!
I find the title weird. I keep expecting some magic of the sword, but no show. This film could better be named "Back to Balhae" or something, because that's what it's all about.
This movie is very beautifully shot, with excellent art direction and costumes. The stuff on screen really is exquisite and should satisfy costume-afficionados and the artists among us.
The actors do a good job too, no overacting or amateurish stuff, but at times over-directed it seems. The two main actresses are very pretty, so very nice to look at. Clearly intended to attract the mainly male target-audience, I guess. It always works dammit :P
The fighting scenes are okay and very enjoyable, but they miss the rawness and directness seen in HongKong martial arts movies.
So bottomline: a rather enjoyable movie, which you'll forget in a week or two.
Good shot by the Koreans at the Wuxia genre though. Keep 'em coming!