''Of course it's different,'' says Kristen Stewart. Okay, maybe it was silly to ask if things had changed since she filmed Twilight a year ago. New Moon, the second movie adapted from Stephenie Meyer's novels, is shooting in Vancouver, Canada, instead of Oregon; fans are now showing up in droves; and director Chris Weitz (The Golden Compass) has taken the reins. In the movie, Bella (Stewart) has been abandoned by her vampire love, Edward (Robert Pattinson), but she hears his voice in her thoughts, even as she finds herself drawn to her friend Jacob (Taylor Lautner). ''When you get broken up with, it really is the worst thing in the world,'' says Weitz. ''Meyer gives a kind of supernatural context to people's real feelings, which sums up what we all go through.''