First-timers won all of the evening's acting prizes: Best Actress Charlize Theron, Best Actor Sean Penn, Best Supporting Actor Tim Robbins, and Best Supporting Actress Renée Zellweger each took home their first Oscars.Theron, who won for her unglamorous portrayal of real-life serial killer Aileen Wuornos, tearfully thanked her mother. ''You have sacrificed so much for me to be able to live here and make my dreams come true,'' she said. A teary Zellweger thanked her fellow nominees, while Tim Robbins offered a message to victims of ''abuse and violence'': ''There is no shame in seeking help and counseling.'' Here are the Oscar winners: Best Picture ''The Lord of the Rings: The Return of the King'' Best Actor Sean Penn, ''Mystic River'' Best Actress Charlize Theron, ''Monster'' Best Supporting Actor Tim Robbins, ''Mystic River'' Best Supporting Actress Renée Zellweger, ''Cold Mountain'' Best Director Peter Jackson, ''The Lord of the Rings: The Return of the King'' Best Adapted Screenplay ''The Lord of the Rings: The Return of the King'' Best Original Screenplay ''Lost in Translation'' Best Foreign Language Film ''The Barbarian Invasions'' Best Animated Feature Film ''Finding Nemo'' Best Cinematography ''Master and Commander: The Far Side of the World'' Best Short Film (Live Action) ''Two Soldiers'' Best Short Film (Animated) ''Harvie Krumpet'' Best Documentary Short Subject ''Chernobyl Heart'' Best Documentary Feature ''The Fog of War'' Best Art Direction ''The Lord of the Rings: The Return of the King'' Best Visual Effects ''The Lord of the Rings: The Return of the King'' Best Sound Mixing ''The Lord of the Rings: The Return of the King'' Best Sound Editing ''Master and Commander: The Far Side of the World'' Best Film Editing ''The Lord of the Rings: The Return of the King'' Best Song ''Into the West'' (''The Lord of the Rings: The Return of the King'') Best Score ''The Lord of the Rings: The Return of the King'' Best Costume Design ''The Lord of the Rings: The Return of the King Best Makeup ''The Lord of the Rings: The Return of the King''