ET: What can you tell us about ‘New Moon’ and ‘Eclipse’?

Melissa Rosenberg: It becomes bigger in scope. The first film was really a small romance in a way. There was the battle with James (Cam Gigandet) at the end. That was as big as it got. With ‘New Moon,’ we have the werewolf clan, we have the Vulturi — and in ‘Eclipse,’ there is an epic battle, so with every book, with every episode of the movie, it gets grander in scope, which is fun to write. What was great about that, too, is with the small story and the characters … to be able to grow with it and track it through, it has really been a great pleasure.

ET: Are you writing for the chemistry between Robert Pattinson and Kristen Stewart?

Melissa Rosenberg: When I wrote ‘Twilight,’ I didn’t know who was starring in it, so I wrote in a vacuum. There was some rewriting that had to be done when we knew who they were, because I had started with more of a comedic edge and it wasn’t appropriate for those actors and the tone. I lean toward the dark comedy, witness “Dexter.” So, going into ‘New Moon’ and ‘Eclipse,’ I knew who I was writing for. I knew who the characters were and what their voices were. It got even easier with ‘Eclipse.’ [Author] Stephenie Meyer’s created the character’s chemistry; and those two actors brought so much chemistry. I don’t think the movies would have been so successful without those two actors and their chemistry. ‘Twilight’ was beautifully cast.

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