During the shoot, the pair [Robert Pattinson and Kristen Stewart] ended up taking the roles — and themselves — a little too seriously. They spent hours deconstructing what it meant to be a vampire, and what it meant to be in love with one. The result: big-time angst, both on screen and off. At one point, the studio began to worry their young stars had mistaken this for a Bergman movie instead of a romantic teen fairy tale. "We were like, 'We're going to play this real' and the studio was like, 'But it's fun. Lighten up!'" says Stewart, who launches into an imaginary rant at the studio suits: "You knew what you were getting when you hired actors who aren't Disney kids! We're actually going to consider the characters, and not just smile on our marks, and hope we're in focus."

-Entertainment Weekly; ew.com

Yet, who happens to be at the premiere...?

Aly Michalka

Brenda Song

Chelsea Staub

Demi Lovato

and your co-star, Taylor Lautner's best friend, Alyson Stoner.