Box-office forecasters are predicting huge crowds at the nation's multiplexes this weekend, with hordes of teenagers pouring in to see Summit Entertainment Group's vampire flick Twilight along with family groups arriving for Disney's latest animated feature Bolt. Each film is expected to take in around $50-60 million. Moreover, other moviegoers who missed last weekend's opening of the latest James Bond epic, Quantum of Solace , will be joining the crowd. It's expected to earn $30-40 million. All in all, the weekend box office total is expected to rise to its highest mark since summer -- ahead of the upcoming four-day Thanksgiving weekend.