Oscar win for Casey Affleck would mean he and Ben join these 8 pairs of sibling champs

If Casey Affleck (“Manchester by the Sea”) can rally in the Best Actor race after his loss at SAG to Denzel Washington (“Fences”), he and brother Ben Affleck will join eight other celebrated pairs of siblings to have both won Oscars. While big brother Ben was snubbed for his helming of “Argo,” he collected an Oscar as a producer when it was named Best Picture of 2012 as well as one for co-writing “Good Will Hunting” with Matt Damon back in 1997.

Below, a few of the famous kinfolk who’ve both won Oscars.

Oscars: Every Best Actor Winner in Academy History (Photo Gallery)

1. The Coen brothers
Joel Coen and Ethan Coen have won four Oscars together. The first was in 1996 in Best Original Screenplay for “Fargo” (that also won Joel’s wife Frances McDormand the Best Actress prize). They collected three in 2007 for “No Country for Old Men;”Best Picture, Best Director and Best Adapted Screenplay.

2. Shirley MacLaine and Warren Beatty
Shirley MacLaine won Best Actress in 1983 for “Terms of Endearment,” two years after younger brother Warren Beatty won Best Director for “Reds.”

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3. The Goldman brothers
Everyone knows of William Goldman, who won two Academy Award:Best Original Screenplay prize in 1969 for “Butch Cassidy and the Sundance Kid” and the Best Adapted Screenplay prize for “All the President’s Men” in 1976. But his older brother James was the first to win an Oscar, for adapting his Tony-winning play “The Lion in Winter,” which also won Katharine Hepburn the third of her four Best Actress awards in 1968.

4. The Sherman brothers
Robert B. Sherman and Richard M. Sherman shared two Oscar wins in 1964 for “Mary Poppins”: Original Song (“Chim Chim Chur-ee”) and Substantially Original Score.

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5. The Mankiewicz brothers
Herman J. Mankiewicz shared his Oscar win with Orson Welles for co-writing the Original Screenplay of “Citizen Kane” in 1942. Joseph L. Mankiewicz (the more famous of the two) won a whopping four Academy Awards in just two years, snagging Best Screenplay and Best Director twice for “A Letter to Three Wives” (1949) and “All About Eve” (1950), the latter of which also won Best Picture.

6. Joan Fontaine and Olivia de Havilland
These sisters are the only siblings to have both won lead acting awards. Their famous feud began when Joan Fontaine won in 1941 for the Alfred Hitchcock thriller “Suspicion” over, among others big sis Olivia de Havilland who was nominated for “Hold Back the Dawn.” However,  de Havilland soon had her revenge as she went on to win Best Actress twice: in 1946 for “To Each His Own” and three years later for “The Heiress.”

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7. The Epstein brothers
Julius J. Epstein and Philip G. Epstein shared in the 1944 Best Screenplay win for “Casablanca” with Howard Koch. The film, which had a troubled path from page to screen, was named Best Picture.

8. The Barrymore siblings
Lionel Barrymore won Best Actor for “A Free Soul” in 1931 while his younger sister Ethel Barrymore took home the Best Supporting Actress award in 1945 for “None But the Lonely Heart.” Their brother John Barrymore, a matinee idol in the 1920s and 1930s, was never nominated.

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