"Zero Dark Thirty" and "Argo" took the top movie prizes Sunday at Writers Guild of America awards ceremonies in Los Angeles and New York.
Mark Boal won for best original screenplay for "Zero Dark Thirty," an account of the global manhunt for al-Qaida leader Osama bin Laden. Chris Terrio won for "Argo," based in part on "The Master of Disguise" by Antonio J. Mendez and on "The Great Escape," an article by Joshuah Bearman that was published in Wired magazine.
Both screenplays are nominated for Academy Awards.
Malik Bendjelloul won for best documentary for "Searching for Sugar Man," the story of a filmmaker's quest to find a long forgotten Detroit singer-songwriter.