The Las Vegas Film Critics Society announced the 2008 winners of its Sierra Awards Thursday, and "Frost/Nixon" emerged with a total of five wins.

Besides taking home the award for best picture, "Frost/Nixon" also won best actor for Frank Langella, best director for Ron Howard, best screenplay for Peter Morgan and best editing for Mike Hill and Daniel P. Hanley.

Kate Winslet received the best actress award for her performances in "Revolutionary Road" and "The Reader," while Marisa Tomei won best supporting actress for "The Wrestler."

Heath Ledger was named best supporting actor for "The Dark Knight." Claudio Miranda won best cinematography for "The Curious Case of Benjamin Button," while James Newton Howard took home best score for "Defiance."

Other winners: "WALL-E," best animated film; "Man on Wire," best documentary; "Mongol," best foreign film; and "Iron Man," best visual effects.

"Doubt" led the Screen Actors Guild Award nominations Thursday with five, followed by "Milk" and "The Curious Case of Benjamin Button," which each scored three.

Meryl Streep received a nomination for best lead actress, as did Anne Hathaway for "Rachel Getting Married," Angelina Jolie for "Changeling," Melissa Leo for "Frozen River" and Kate Winslet for "Revolutionary Road."

Also scoring a nomination for "Doubt" was Philip Seymour Hoffman in the category for best supporting actor. He will compete against Heath Ledger, Josh Brolin, Robert Downey Jr. and Dev Patel.

Competing for the best lead actor award are Richard Jenkins for "The Visitor," Frank Langella for "Frost/Nixon," Sean Penn for "Milk," Brad Pitt for "The Curious Case of Benjamin Button" and Mickey Rourke for "The Wrestler."

In the category for best supporting actress, Viola Davis and Amy Adams both received nominations for "Doubt." Other nominees included Kate Winslet for "The Reader," Penelope Cruz for "Vicky Cristina Barcelona" and Taraji P. Henson for "Benjamin Button."

The following films received a nomination for best ensemble cast: "Doubt," "Frost/Nixon," "Milk," "Slumdog Millionaire" and "The Curious Case of Benjamin Button."

If you dig TV series, click here for the complete list of nominees.

The American Film Institute picked its top 10 movies of 2008. David Fincher's "The Curious Case of Benjamin Button" was the first one on the list, with "The Dark Knight" and "Frost/Nixon" following second and third, respectively.

Also part of the list were Courtney Hunt's directorial debut "Frozen River," Clint Eastwood's "Gran Torino" and Jon Favreau's "Iron Man."

Gus Van Sant's drama "Milk," Pixar's "WALL-E," Kelly Reichardt's "Wendy and Lucy" and Darren Aronofsky's "The Wrestler" rounded out the top 10.

Read more about AFI on the official AFI Web site.