For which film did Jamie Foxx win the Oscar for Best Actor?

For which film did Denzel Washington win the Oscar for Best Actor? Who won the Oscar for Best Actor for 'The Pianist'? Who won the Oscar for Best Actor for 'Mystic River'? Who won the Oscar for Best Actor for 'Ray'? Who won the Oscar for Best Actor for 'Capote'? For which film did Philip Seymour Hoffman win the Oscar for Best Actor? Who won the Oscar for Best Actor for 'The Last King of Scotland'? For which film did Forest Whitaker win the Oscar for Best Actor?