Is there an Oscar curse?

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In this Jan. 11, 2009 file photo, "Revolutionary Road" director Sam Mendes(R) kisses his wife, actress Kate Winslet backstage at the 66th Annual Golden Globe Awards in Beverly Hills, Calif. London-based law firm Schillings announced Monday March 15, 2010, that the couple have separated. In a statement, the law firm said that the split was "entirely amicable and is by mutual agreement." Winslet married Mendes in 2003. It was her second marriage.

BEIJING, March 16 (Xinhuanet) -- Oscar-winning couple Kate Winslet and Sam Mendes announced their split on Monday, according to media reports. We can't help but wonder: Is this one of those Oscar forgot-to-thank-the-spouse things? Is there an Oscar curse ?

Let's check out the following Oscar winners who split from their partners after winning.

1. Jennifer Lopez & Ben Affleck

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They separated soon after showing up together on the Oscar red carpet.

2. Hilary Swank & Chad Lowe

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Their marrige lasted ten years, but just after Swank won an Oscar for best actress, they got divorced.

3. Reese Witherspoon & Ryan Phillippe

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Witherspoon divorced from her ten-year husband Ryan Phillippe several months after receiving an Oscar award for best actress in 2006.

4. Leonardo DiCaprio & Gisele Bundchen

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Leonardo and Gisele's three-year relationship ended after Leonardo took Gisele to the Oscar red carpet. And that was the first time he had brought his lover to the ceremony.