"The Hurt Locker," the intense war drama about explosives experts inIraq, took top honors in the 13th annual Online Film Critics Society Awards, winning Best Picture against fellow nominees "Inglourious Basterds," "A Serious Man," "Up," and "Up in the Air."

The film also won in the categories of Best Director (Kathryn Bigelow), Best Actor (Jeremy Renner), and Best Editing (Chris Innis and Bob Murawski).

Another film matched "The Hurt Locker's" four awards: "Inglourious Basterds," with nods for Best Actress (Melanie Laurent), Best Supporting Actor (Christoph Waltz), Best Original Screenplay (Quentin Tarantino), and Best Cinematography (Robert Richardson).

"Anvil!: The Story of Anvil" was named Best Documentary, with "Up" as Best Animated Feature and "The White Ribbon" as Best Picture Not in the English Language.

The complete winners of the 2009 OFCS Awards are as follows:

Best Picture: "The Hurt Locker" Best Director: Kathryn Bigelow, "The Hurt Locker" Best Actor: Jeremy Renner, "The Hurt Locker" Best Actress: Melanie Laurent, "Inglourious Basterds" Best Supporting Actor: Christoph Waltz, "Inglourious Basterds" Best Supporting Actress: Mo'Nique, "Precious" Best Original Screenplay: Quentin Tarantino, "Inglourious Basterds" Best Adapted Screenplay: Wes Anderson and Noah Baumbach, "Fantastic Mr. Fox," based on a book by Roald Dahl Best Documentary: "Anvil!: The Story of Anvil" Best Picture Not in the English Language: "The White Ribbon" Best Animated Feature: "Up" Best Cinematography: Robert Richardson, "Inglourious Basterds" Best Score: Michael Giacchino, "Up" Best Editing: Chris Innis and Bob Murawski, "The Hurt Locker"

(A complete list of the nominees can be found here)

Founded in 1997, the Online Film Critics Society is the oldest organization of Internet-based film journalists, and has been at the forefront in establishing and maintaining the standards of online film criticism. The group's 145 members, spread across a dozen countries, write about every aspect of cinema, from today's major releases to the smaller films of yesteryear. For more information, visit http://www.ofcs.org and http://ofcsnews.blogspot.com. The OFCS is led by a three-member Governing Committee, which can be contacted at gc@ofcs.org.