SPLITSVILLE: Michael Douglas and Catherine Zeta-Jones Split After 13 years

After 13 years of marriage, two kids, a successful cancer battle and alleged bipolar disorder treatments Michael Douglas, 68, and Catherine Zeta-Jones, 43, are separating per sources reporting exclusively to People magazine.

Michael Douglas and Catherine Zeta-Jones haven't been photographed together since April 22. They've walked red carpets solo,vacationed separately with their kids, and in recent days, Douglas has been relaxing on a yacht off the coast of Sardinia – with Zeta-Jones at home in New York.  

So what's really going on with one of Hollywood's most celebrated couples? In this week's new cover story, two close confidantes tell PEOPLE that they've decided to take time apart: "They're taking a break," one source says.  

Neither star has filed for divorce or moved toward a legal separation, sources say. 

Douglas, 68, and Zeta-Jones, 43, who have two children, Dylan, 13, and Carys, 10, together, decided to spend time apart soon after he came back from the Cannes Film Festival in May. Zeta-Jones had recently returned from a scheduled second round of treatment to monitor her bipolar disorder. 

Is anyone trustworthy enough not to become a source these days?