'Twilight' star Kristen Stewart's 'New Moon' lovers: Taylor Lautner, Robert Pattinson

The Dish Rag asked Kristen Stewart, at the press junket for the winning '80s comedy "Adventureland," how it feels to start to film the second "Twilight" film, "New Moon."

Is she excited about going back to that world?

"I'm looking forward to all of the new aspects of the movie," she says.

"A lot more introduced, like the world of the werewolves is coming alive. The second movie is much more quaint. Edward [Robert Pattinson] leaves her, which is interesting, considering since the first movie is based on their devotion to each other."

"So to see them cope without each other and to see this character Jacob, who is supposed to represent light and warmth and he pulls her out of a rut that's like seemingly impossible -- it's really tragic. Like, I can't wait to see Taylor's [Lautner] face when I tell him, 'It's him, it's always been him," she says with an audible shiver.

In some respects, Stewart found more to work with in the second book.

"The first one was good because it was ultimate love, and abandon, and that's good but it's kind of one-note."

Now Bella is growing up.

"She's getting older," Stewart says. "Over the course of these four movies, she has to become a formidable partner, because in the end, and I don't think I'm ruining anything here, they end up together. And in the first one, he's very much a man and she's very much a child and she has to become more of a formidable partner."

And about her new buff Jacob, she admits that those new muscles are pretty hot. "He's Jack. It's crazy."

But no, he's not on steroids.

"He did some serious gym time. He's an entirely different person physically," she says. "It took him so much time and he's so devoted. He's amped!"

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Photos (from top): Robert Pattinson and Kristen Stewart. Taylor Lautner showing how he gained his muscles -- lifting heavy forks! Credits: FilmMagic, WireImage

Reporting: Sal Morgan