Sandra Bullock has reportedly left Jesse James after an alleged affair rumor surfaced just 10 days after her Oscar win. Meanwhile, previous Best Actress winner Kate Winslet and her husband Sam Mendes called it quits on Monday.
Is there an Oscar relationship curse? Bullock and Winslet are not the first women to have received top Oscar honors and endure relationship endings within the same year.
See more leading ladies who may have been hit with the "Oscar Curse."
Sandra Bullock: Best Actress Winner 2010 for "The Blind Side"
Sandra Bullock left the Los Angeles home she shares with husband Jesse James shortly after winning the Oscar, amid rumors he had had an affair.
Bullock and James met in 2004 during a tour of the set of the James' Discovery Channel show, "Monster Garage." The couple married a year later.
Kate Winslet: Best Actress Winner 2009 for "The Reader"
Kate Winslet and Sam Mendes, who worked together on 2008's "Revolutionary Road," were married for seven years and have a 6-year-old son, Joe.
The couple announced their split in March, 2010.
Reese Witherspoon: Best Actress Winner 2006 for "Walk the Line"
Reese Witherspoon filed for divorce from Ryan Phillippe in 2006 after alleged affair rumors surfaced.
The two were married for 7 years and have two children.
Hilary Swank: Best Actress Winner 2005 for "Million Dollar Baby"
Hilary Swank and Chad Lowe filed for divorce in 2006.
The couple met in 1992 and were married for nine years.
Halle Berry: Best Actress Winner 2002 for "Monster's Ball"
Halle Berry and Eric Benet separated in 2003 after rumors of Benet's cheating surfaced.
The couple met in 1999 and were married for three years.
Julia Roberts: Best Actress Winner 2001 for "Erin Brockovich"
Julia Roberts and boyfriend Benjamin Bratt broke up three months after she won the Oscar.
The couple had been together for four years.
Gwyneth Paltrow: Best Actress Winner 1999 for "Shakespeare in Love"
Gwyneth Paltrow and Ben Affleck were a hot item, but broke up just two months after she accepted the award.
They had been dating for one year.
Helen Hunt: Best Actress Winner 1998 for "As Good As It Gets"
Helen Hunt and actor Hank Azaria got married a few months after she won the Oscar. Within just six months, they filed for divorce.
Speculation has been circulating as to why Kate Winslet and husband Sam Mendes called it quits after seven years, but a source tells People.com the couple "just grew apart."
There have been rumors that Winslet had been frustrated with Mendes' close friendship with actress and fellow Brit Rebecca Hall, who worked with the director on a few plays in New York.
A source close to Mendes confirmed to the U.K's Daily Mail: "Sam and Rebecca are good friends, of course they are, they have spent the better part of a year working together on the Bridge Project. But to insinuate that there is anything further in the friendship is taking it too far."
Oscar winners Kate Winslet and director husband Sam Mendes have gone their separate ways, Winslet's rep confirmed to "Extra."
The 34-year-old Winslet separated from Mendes at an unspecified point earlier this year, a UK law firm said. It wasn't clear whether divorce proceedings have begun.
Don't mess with Kate Winslet.
The actress was awarded 25,000 pounds (roughly $40,000) from the UK's Daily Mail after London's High Court ruled on Tuesday that the tabloid was guilty of libel. The Mail printed a story about Winslet, 34, earlier this year dubbing her "the world's most irritating actress."
See photos of Winslet and her fellow 2009 Oscar winners
The publication also accused Winslet of lying about her exercise regime to Elle magazine, where she revealed, "I don't go to the gym because I don't have time, but I do Pilates workout DVDs for 20 minutes or more every day at home. "
Winslet, an outspoken critic of Hollywood's pin-thin frames, says in a statement that she was "particularly upset to be accused of lying about my exercise regime and felt that I had a responsibility to request an apology in order to demonstrate my commitment to the views that I have always expressed about body issues, including diet and exercise."
Winslet adds, "I strongly believe that women should be encouraged to accept themselves as they are, so to suggest that I was lying was an unacceptable accusation of hypocrisy."
The Daily Mail published an apology to Winslet in September, acknowledging that Winslet had not lied about how much she exercised, and agreed to pay damages and costs to "The Reader" star. Winslet said of the settlement, "I am delighted that the Mail have apologised for making false allegations about me."
From movie premieres to award shows, these sexy celebs showed off chic fashions and their foxy figures.
Oscar winner Kate Winslet slipped into a black Stella McCartney dress for a screening of her husband Sam Mendes' new film "Away We Go" in New York City.
"Waking Up in Vegas" songstress Katy Perry stood out in a bright blue silk mini dress from Foley + Corinna for the Glamour Women of the Year Awards in London.
"Parks and Recreation's" Amy Poehler wore a puffy sleeved champagne colored dress to the Gracie Awards in New York City.
"Extra" wants to know: Which lady looked the loveliest this week?
Best Actress Kate Winslet was all smiles at JFK Airport in NYC, where the "Reader" star returned, triumphantly holding tight to her Best Actress Oscar wrapped in a green bag. Kate won on Sunday night for the first time after six nominations.
Check out the video!