All New: Behind the Scenes of 'Twilight'

Before ET airs the never-before-seen 'Twilight' trailer on Tuesday, ETonline has the new behind-the-scenes footage of the highly anticipated vampire thriller/love story flick based on the New York Times best seller.

In the new footage, which can also be seen on the DVD of the Christina Ricci film 'Penelope' -- on sale Tuesday -- screenwriter Melissa Rosenberg and author Stephenie Meyer chat about the film, in theaters December 12.

And remember to watch ET Tuesday night for the exciting 'Twilight' trailer!

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