Twilight lovers Robert Pattinson and Kristen StewartWhen the first movie adaptation from Stephanie Meyer's 'Twilight' vampire novels opened a year ago today, the title was the attraction. Very few people were familiar with the actors cast in the roles of characters that fans had come to see and love only in their heads. Of course, the title proved to be enough: the movie had a $69.6 million three-day opening on its way to a $191.5 million domestic run.

Today, things are different. The returning stars -- Kristen Stewart, Robert Pattinson and Taylor Lautner -- are 'Twilight'-tested and approved, and the second movie, 'The Twilight Saga: New Moon,' enters its opening weekend with even higher expectations. Some Hollywood insiders believe that because of the heat surrounding its stars and the fact that 'New Moon' is opening in about 600 more theaters than the first film, it will sell more than $100 million worth of tickets through Sunday.