‘Marriage is a lot of work,’ says Michael Douglas on 2013 split with Catherine Zeta-Jones BBCMichael Douglas dumped staggering amount of partners before Catherine Zeta-Jones romance Page SixMichael Douglas reveals several bombshell affairs with past costars in One Helluva Ride memoir Entertainment WeeklyMichael Douglas Opens Up About His Brief Separation From Catherine Zeta-Jones instyle.comMichael Douglas opens up about Catherine Zeta-Jones split after 13 years: ‘We had our problems’ The Independent