'Avatar,' 'Star Trek' among WGA nominees

7:35 PM PDT 10/13/2010 by Gregg Kilday, AP

'(500) Days of Summer,' 'Hangover' also nominated

Some critics may have taken potshots at James Cameron's screenplay for "Avatar," but it has earned a nomination from the Writers Guild of America, which announced nominations for the 2010 WGA Awards on Monday.

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