Keanu Reeves stars as a tortured "Half breed" that leads "47 Ronin" against an evil Shogun. The special effects caught my eye right away. 

This appears to be loosely and I mean VERY loosely based on "The 47 Ronin" a movie made back in the 40's. There is a lot of super natural evil in this adaptation. My favorite reaction to the trailer so far is "Crouching tiger hidden Matrix". Let's be honest if it's at all like the first Matrix movie it'll be awesome.