Liked the movie... BUT...
Was filmed nicely, some good acting, and couple of hot gals.
I think the theory of the 'beast' that the movie presents, is plausible enough to not be distracting.
IMO, the main problem of the movie was the way overdone fight scenes. Why in the heck would you have everyone using asian style martial arts, when there is a perfectly awesome martial arts style in that era and location already?
I think it would have been much better to use european sword fighting, and for Mani, a more realistic looking fighting style, including alot of knife and tomahawk.
Also way too much slo mo in it.