Zeta-Jones and Douglas living together again

Catherine Zeta-Jones and Michael Douglas have been dating since 1999 and have two children. Photo / AP

Michael Douglas and Catherine Zeta-Jones are reportedly living together again.

The Behind the Candelabra star - who fled from the family home in August - has reportedly moved back into the multi-million dollar apartment in Bedford, New York City, he shares with his wife and their two children, Dylan, 13 and Carys, 10, after the couple decided to give their 13-year marriage another go.

A source told the Daily Mail newspaper: "Michael's asked Catherine to give things another try and she's agreed. It's not just for the sake of the children.

"When they're good they're amazing together, so they're hammering out their issues at their home. It's good news and Catherine is on top of the world."

Michael and Catherine - who began dating in March 1999 - have reportedly been separated for four months, but only confirmed their split two months ago after admitting they were "taking time apart to evaluate their marriage" in a bid to hopefully save their relationship.

The Oscar-winning actor - who hasn't been pictured with the welsh beauty since April - recently thanked his wife during his moving acceptance speech at the 65th Primetime Emmy Awards in Los Angeles as well as giving his eldest son Cameron - who is currently serving time in prison for drug offences - a special shout out.

He said at the event last month: "I want to thank my wife Catherine for her support, my kids Dylan and Carys, and a shout out for my oldest son Cameron and hoping that they'll allow me to see him soon."

The pair's marriage has been rocked by numerous stresses in the last three years with Michael being diagnosed with throat cancer in 2010 - which he beat - and Catherine suffering from bouts of bipolar II disorder, most recently in May this year.

- Bang! Showbiz