<P> The winners were announced during the awards ceremony on February 22 , 2009 . Slumdog Millionaire was the eleventh film to win Best Picture without any acting nominations . Sean Penn became the ninth person to win Best Lead Actor twice . Best Supporting Actor winner Heath Ledger became the second performer to win a posthumous acting Oscar . The first actor to receive this distinction was Peter Finch who posthumously won Best Actor for Network two months after his death in January 1977 . With its six nominations , Best Animated Feature Film winner WALL - E tied with 1991 's Beauty and the Beast as the most nominated animated film in Academy Awards history . </P>
<P> The winners were announced during the awards ceremony on February 22 , 2009 . Slumdog Millionaire was the eleventh film to win Best Picture without any acting nominations . Sean Penn became the ninth person to win Best Lead Actor twice . Best Supporting Actor winner Heath Ledger became the second performer to win a posthumous acting Oscar . The first actor to receive this distinction was Peter Finch who posthumously won Best Actor for Network two months after his death in January 1977 . With its six nominations , Best Animated Feature Film winner WALL - E tied with 1991 's Beauty and the Beast as the most nominated animated film in Academy Awards history . </P>
which actor won the oscar for best actor in 2009
which actor won the oscar for best actor in 2009
Sean Penn
Sean Penn