I 'heard' from little bird that, in fact, Summit Ent. had to cut its budget due to the recession, and the characters of Carlisle, Esme, and Sam were all deemed 'unnecessary' and will no longer appear in New Moon to save money while paying actors and actresses. Summit Ent. ALSO didn't have money for a proper screenplay, and they appealed to a group of fans, who, on a volunteer basis, work to select plots from their favorite Twilight fanfictions and fan-made videos to create a patch-work plot for the movie. Don't be surprised if Jasper seems extra emo or Edward ends up having a battle to the death with Harry Potter.