Despite being based on true events that were extensively covered in the media,
Kathryn Bigelow's
Zero Dark Thirty has been shrouded in nearly as much secrecy as an actual military operation. But that's all part of the film's intrigue. Columbia's having fun playing up that angle, even covering
the first teaser poster with thick black censor marks.
What that means, however, is that we still have only the barest idea ...