For which film did Christian Bale win the Oscar for Best Supporting Actor?

Who won the Oscar for Best Supporting Actor for 'The Dark Knight'? For which film did Heath Ledger win the Oscar for Best Supporting Actor? Who won the Oscar for Best Supporting Actor for 'Inglourious Basterds'? Who won the Oscar for Best Supporting Actor for 'The Fighter'? Who won the Oscar for Best Supporting Actor for 'Beginners'? For which film did Christopher Plummer win the Oscar for Best Supporting Actor? Who won the Oscar for Best Supporting Actor for 'Django Unchained'? Who won the Oscar for Best Supporting Actor for 'Dallas Buyers Club'?