 The effect of the vampire brides flying forms was pulled off by  having the face and hair of the actresses made up as it would appear  in the film and having them wear motion capture suits and film them  against green screen.  SPOILER: The appearance of the three brides is based on the brides  in Bram Stokers Dracula (1992). Ironically, Monica Bellucci played  the queen bride as Sylvia Colloca did and the two have been compared  often. Also, the fair haired vampire (Marishka) dies first in both  movies.