Filming is currently underway on Thor: The Dark World in London, and a batch of exciting new images from the set has landed online.  We previously saw some photos of a fairly massive outdoor set being built, but these images show the action that director Alan Taylor (Game of Thrones) has staged on the completed set.  We see Jaimie Alexander’s Sif riding around on horseback while what appears to be a large battle between two factions is taking place.  After the jump you’ll find images of some of the creatures involved, explosions, fire, and plenty of warriors.  Chris Hemsworth is nowhere to be found, but I’m sure it won’t be long before we get a look at the actor reprising his titular role as Thor.Hit the jump to check out the set photos.  Possible spoilers follow, though I wouldn't be surprised if this turned out to be some sort of opening sequence for the film.  The pic also stars Tom Hiddleston, Natalie Portman, Ray Stevenson, Tadanobu Asano, Zachary Levi, Idris Elba, Alice Krige, Kat Dennings, Adewale Akinnuoye-Agbaje, Anthony Hopkins, Jaime Alexander, Rene Russo, and Christopher Eccleston.  Thor: The Dark World opens on November 8th, 2013.[Update: Speak of the devil.  Images of Hemsworth on set and kicking ass have now surfaced and are included after the jump.]Images via The Daily Mail and Just Jared.