The Hurt Locker and Up in the Air win writing awards!

The writing Oscars are locked. "The Hurt Locker" and "Up in the Air" won their respective categories at today's Writers Guild of America awards. The race for best picture, best director and best actress remain the most unpredictable categories left...

Here's a clip from Susan King's web report of tonight's ceremony...

"The Hurt Locker's" Mark Boal received the WGA award for original screenplay for his gripping drama about a bomb disposal unit in Iraq. Boal, who is also nominated for an Oscar, thanked the American soldiers in the war-devastated region who let him "get up close and personal" to the "chaos and hellishness" when he was embedded there as a journalist.

"Up in the Air's" Jason Reitman and Sheldon Turner won for adapted screenplay for their dramedy about a corporate downsizer. The two have won numerous critics' awards, as well as the Golden Globe, for their screenplay, which was based on the book by Walter Kirn. They are also nominated for an Academy Award.

"I can't tell you how extraordinarily proud I am to be standing in front of you," said Reitman, who also directed the film. "I am always a writer."

Several writers who are nominated for this year's Oscar in the original or adapted screenplay categories -- including "Inglourious Basterds'" Quentin Tarantino and "An Education's" Nick Hornby -- weren't eligible for a WGA award because their movies either hadn't been written under the guild's Minimum Basic Agreement or under a collective-bargaining agreement of one of the international guilds.