- Remember how in the first one, David could see Jack's ghost as well as the ghosts of his victims? In this film, we see that not only the main werewolf can see the ghosts; others can too, and from what we see in this film, there are more werewolves in Paris than in London.
- Club De La Lune, the nightclub Claude runs — Claude and his gang of werewolves — who use the club to lure people, namely tourists, to their deaths.Claude: I love Americans, they have such good taste.
- The experimental cure Serafine's stepfather makes causes immediate transformations — and Claude wants to use it at his club raves.
