"Changeling" scribe J. Michael Straczynski is writing the screenplay, and Brad Pitt's Plan B is producing.

Brooks — the son of Mel Brooks and Anne Bancroft — wrote a detailed tale in which a researcher for the U.N. Postwar Commission interviews survivors from countries all over the world, 10 years after the crisis, to gather a first-person post-mortem on a war that obliterated every country on the map.