What do you think about the legendary "Oscar’s curse"? Is it just a coincidence?

According to a study conducted by the University of Toronto, winners of the Best Actress award at the Oscars winners have a 63% chance of ending up divorced.

 In Hollywood, many actresses, shortly after winning an Oscar, have seen their relationships fall apart. Sandra Bullock (2010), Kate Winslet (2009), Reese Witherspoon (2006), Hilary Swank (2005), Halle Berry (2002) and Julia Roberts (2001) are among the winners to fall victim to the curse.

This year Natalie Portman is a hot favourite to win the Oscar for Best Actress in a Leading Role for Black Swan. Do you think she could be afflicted by Oscar's curse, too, if she won?

In general, what do you think about Oscar’s curse? Is it just coincidental? Or could it be true?