Sam Mendes, Kate Winslet Sam Mendes, Kate Winslet

For many best-actress Oscar winners, the award has been a bad-luck charm for matters of the heart. More than a handful of leading ladies have parted ways with their significant others after snagging a statuette — from the Golden Age of Hollywood (Bette Davis and first husband Harmon Nelson) to the '70s (Barbra Streisand and Elliott Gould) to the turn of the millennium (Helen Hunt and Hank Azaria). In the past week, Kate Winslet split from Sam Mendes, while Jesse James has apologized to his wife, 2009 Academy Award best-actress winner Sandra Bullock, after reports of infidelity surfaced. The future of Bullock and James' relationship is unclear, but the so-called "curse" has reared its ugly head frequently of late. Let's take a look at the last 10 best-actress winners:

Report: Sandra Bullock moves out out amid model's claim of infidelity by Jesse James

Jesse James apologizes to Sandra Bullock: "I deserve everything bad coming my way"

Hilary Swank
Won Oscars for:

Boys Don't Cry (1999) and Million Dollar Baby (2004)
Status at the time: married to Chad Lowe
Swank infamously forgot to thank Lowe in her acceptance speech for Boys Don't Cry, but made up for the slight five years later when she won Oscar No. 2. Less than a year later, the couple, who had been together since 1992, announced their split.

Reese Witherspoon
Won Oscar for: Walk the Line (2005)
Status at the time: married to Ryan Phillippe
Phillippe and Witherspoon, who have two children, was the poster couple for young Hollywood love. Their fairy tale ended in October 2006 when they separated after seven years of marriage — just seven months after Witherspoon picked up her Oscar. Their divorce was finalized in 2007. Witherspoon later dated Jake Gyllenhaal, an Oscar nominee for Brokeback Mountain the same year she won her golden guy.

Ryan Phillippe dishes on his divorce

Kate Winslet and Sam Mendes split