For which film did Forest Whitaker win the Oscar for Best Actor?

For which film did Jamie Foxx win the Oscar for Best Actor? 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'? Who won the Oscar for Best Actor for 'There Will Be Blood'? Who won the Oscar for Best Actor for 'Milk'? Who won the Oscar for Best Actor for 'Crazy Heart'? For which film did Jeff Bridges win the Oscar for Best Actor?