According to the official BANDSLAM page, and Summit’s The World of Twilight site – there will be an “exclusive” trailer for New Moon “only in theaters” with BANDSLAM, which is in theaters on August 14th.
I see a trip to the movies with my daughter in my future. “What? Nooo, I had NO IDEA they would be playing New Moon before this. That has nothing to do with why I wanted to be at the theater 20 minutes early, None whatsoever.” But since she’s Team Jacob all the way, I don’t think she’d mind too much.
You can watch the trailer for the movie here.