“Twilight” fans who stormed into theaters as soon as the vampire romance film was released last Friday can rejoice at the news that a sequel is sure to follow, with all the major cast members on board.

Stephenie Meyer’s young adult novels concerning the love story between Bella Swan and Edward Cullen has created a frenzy among female adolescents and it was to be expected that a big-screen adaptation was to enjoy similar success.

Summit Entertainment’s “Twilight” pulled in a whopping $70 million last weekend, despite box office analysts’ vision of a maximum $60 million, due to anticipated low interest among male moviegoers.

The film marks the biggest opening weekend ever for a female director, with Catherine Hardwicke having surpassed the previous $41.1 million record, established by Mimi Leder in 1998 with “Deep Impact.”

Hardwicke has signed on to direct the sequel, titled “New Moon,” while all the major cast members are also on board to star in the upcoming installment, scheduled for release in 2010.

Robert Pattinson portrays vampire Edward Cullen, who has the body of a 17-year-old and the life experience of a man over 100. Edward is no ordinary vampire though, as he has deep moral beliefs and refuses to harm humans. He falls in love with Bella Swan, the teenage girl, portrayed by Kristen Stewart, who is willing to become a vampire herself in order to be with Edward.

Co-stars Rachelle Lefevre, Edi Gathegi and Taylor Lautner have also signed for the next installment. Variety previously reported Pattinson screenwriter Melissa Rosenberg has signed on to pen “New Moon” and possible third installment “Eclipse.”