MTV: Chris, “New Moon” has a lot of disparate elements. You need to portray a love that’s Shakespearean, like “Romeo and Juliet,” but at the same time do action scenes and car chases, and at the same time do effects work with werewolves and vampires. Which is the hardest, and how are you dealing with it?

Chris Weitz: The hardest thing to do is to blend all these elements into one thing that seems like a coherent whole. We [need to make sure we] don’t just stop for the action sequence or stop and have the audience say, “Oh, what a great special effect!” You want it to be a complete, seamless experience in which the emotions of the characters are what’s foremost. The hardest thing, but also the most enjoyable thing, is working with actors. You can control everything else, except the weather — what really matters is the characters and the feelings that they evoke in the readers of the book. It’s the hardest stuff, but it’s also the stuff that makes it the most satisfying when you get it right.

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