She may be an A-lister but is she also a diva? Sources say Jennifer Aniston is acting like a total diva on the set of the untitled Elmore Leonard film she's working on in Connecticut. Despite working with other celebs like Isla Fisher and Tim Robbins, insiders say Jennifer is anti-social, eating lunch by herself and having her trailer miles away from the set. The actress supposedly also takes a private luxury SUV to the lunch room while the rest of the cast rides in normal vehicles. Do you blame her?