Disney's Pixar has become such an overwhelming force at the box office that it has now taken to warning competitors not to get in its way. That would appear to be the motive behind the studio's decision on Monday to disclose that it plans to release a film on November 27, 2013 but without giving any details about the movie itself -- no title, no description, no stars (although usually the voice cast of animated movies record their lines more than two years before the film is completed.) Word of Pixar's plans was first reported by Deadline.com. Britain's Empire magazine said on its website Tuesday that "the one piece of information that does seem to have leaked out about the mystery new movie is that it'll be an original project and not a sequel."