New ‘Twilight Saga: Breaking Dawn – Part 2′ trailer shows Bella vamping it up

Bella Swan (Kristen Stewart) went through some big changes last time we saw her: she got married, got pregnant, delivered a baby, and, oh yeah, died. But that was "Breaking Dawn - Part 1." This November brings us the final chapter of "The Twilight Saga," and it's a whole new Bella in "Breaking Dawn - Part 2."

In the just-released trailer, becoming a vampire has affected Bella far beyond just her new skin tone and eye color. She possesses the super-speed and jumping ability of a bloodsucker. But it also seems to have shaken up her personality. Bella says, "After 18 years of being utterly ordinary, I finally found I could shine." She's quick to smile at her old friend Jacob (Taylor Lautner), and she even looks to be dressed with more style.

Of course, what's changed her even more than becoming a vampire was becoming a mother. In the trailer, Edward (Robert Pattinson) tells Bella that the Volturi, the ruling coven of vampires, have come to believe that their daughter, Renesemee, is an "immortal child." They believe a human child that's been turned into a vampire is too dangerous and unpredictable to be allowed to live, so their leader, Aro (Michael Sheen), assembles a force to take her.

[Photos: Kristen Stewart red carpet gallery]

Combining maternal instincts with inhuman strength and an unquenchable bloodlust makes for a potent combination, though. As Edward assembles other vampire covens to join their cause to protect Renesmee, Bella tells the girl "I'll never let anybody hurt you." We get glimpses of Bella's forces -- including a pack of werewolves -- assembling to face off against the Volturi. Then the warring factions take off running at each other, and the last image we see is Bella with a look of strength and determination like she's never had before.

It looks like the action has been amped up not just from the previous films, but also from the book itself. We'll see just how intense the fight gets when "The Twilight Saga: Breaking Dawn - Part 2" hits theaters on November 16.

[Related: First trailer for Disney/Pixar's 'Monsters University']