Lightsabers and boobblasters. Well blended and good use of references. Some of the costumes look Amadeus, HD and Marlborough Man, Brotherhood of the Wolf, Black Swan inspired. Adds depth to the story experience rather than only gloss.
I'm a metal head at heart but I listen to a lot of jazz lately. After spending 10+ hours working in IT, the last thing I want to listen to is Slayer or Gojira. But in the right frame of mind, Iron Maiden or Rammstein.