The Writers Guild of America, West (WGAW) and the Writers Guild of America, East (WGAE) have announced nominations for outstanding achievement in writing for the screen during the past year. Winners will be honored at the 2010 Writers Guild Awards held on Saturday, February 20, 2010, at simultaneous ceremonies in Los Angeles and New York.

Original Screenplay

(500) Days of Summer, Written by Scott Neustadter & Michael H. Weber; Fox Searchlight

Avatar, Written by James Cameron; 20th Century Fox

The Hangover, Written by Jon Lucas & Scott Moore; Warner Bros.

{FIwoEywzbxZpAx, Written by Mark Boal; Summit Entertainment

A Serious Man, Written by Joel Coen & Ethan Coen; Focus Features

Adapted Screenplay

Crazy Heart, Screenplay by Scott Cooper; Based on the novel by Thomas Cobb; Fox Searchlight

Julie & Julia, Screenplay by Nora Ephron; Based on the books Julie & Julia by Julie Powell and My Life in France by Julia Child with Alex Prud'homme; Sony Pictures

Precious: Based on the Novel "Push" by Sapphire, Screenplay by Geoffrey Fletcher; Based on the novel "Push" by Sapphire; Lionsgate

Star Trek, Written by Roberto Orci & Alex Kurtzman; Based upon Star Trek, Created by Gene Roddenberry; Paramount Pictures

Up in the Air, Screenplay by Jason Reitman and Sheldon Turner; Based upon the novel by Walter Kirn; Paramount Pictures

Documentary Screenplay

Against the Tide, Screenplay by Richard Trank; Moriah Films

Capitalism: A Love Story, Written by Michael Moore; Overture Films

The Cove, Written by Mark Monroe; Lionsgate and Roadside Attractions

Earth Days, Written by Robert Stone; Zeitgeist Films

Good Hair, Written by Chris Rock & Jeff Stilson and Lance Crouther and Chuck Sklar; Roadside Attractions

Soundtrack for a Revolution, Written by Bill Guttentag & Dan Sturman; Freedom Song Productions and Louverture Films

The 2010 Writers Guild Awards will be held on Saturday, February 20, 2010, simultaneously at the Hyatt Regency Century Plaza Hotel in Los Angeles and the Hudson Theatre at the Millennium Broadway Hotel in New York City.