'Twilight': The EW Photo Album

Taylor Lautner (The Adventures of Sharkboy and Lavagirl 3-D) plays Jacob Black, a member of the Quileute tribe and friend to heroine Bella Swan. Well, she thinks they're just friends, but Jacob's got other plans....

Though Lautner's role in the first of the Twilight flicks is small, it is integral: He helps Bella uncover vampire Edward's true identity.

At first, Pattinson was unsure how to play the most beautiful creature on Earth. ''Here's this guy who seems to be the embodiment of every single perfect guy. Okay, I'm going to look like a complete idiot if I just try to do that — like give a half-Fonz, half-George Clooney impression,'' Pattinson says. ''But then I did it with Kristen and it was completely different. We had this chemistry that just worked.''

The chemistry between Pattinson and Stewart was largely what led Twilight director Catherine Hardwicke to cast the 22-year old Brit as Edward. ''It was electric,'' Hardwicke says of the now infamous bedroom screen test. ''The room shorted out, the sky opened up, and I was like, 'This is going to be good.'''

For her part, Stewart was attracted to the role of Bella because of the gawky teen's first brush with romance. ''What I love about the story,'' Stewart says, ''is that it's about a very logical, pragmatic girl who you think would never get swept into something that has this bizarre power.''