Robert Downey Jr. won his first Academy Award for Best Actor in a Supporting Role for his performance as in the blockbuster biopic "Oppenheimer," three decades after receiving his first nomination.He had previously been nominated for Best Actor for "Chaplin" in 1993,and for Best Supporting Actor in 2008 for "Tropic Thunder"
Downey beat Sterling K. Brown for "American Fiction," Ryan Gosling for "Barbie," Mark Ruffalo for "Poor Things" and Robert De Niro for "Killers of the Flower Moon." "Oppenheimer" received a total of 13 nominations including best picture. Co-star Cillian Murphy is up for Best Actor in a Leading Role for his performance as Robert J. Oppenheimer.