Michael Douglas is hoping he and wife Catherine Zeta-Jones - who took a temporary ''break'' in August - can resolve their marriage problems.

The 69-year-old actor and wife Catherine Zeta-Jones, 44, took a temporary ''break'' from their 13-year marriage in August but the 'Behind the Candelabra' star - who has children Dylan, 13, and Carys, 10, with the actress - believes the future is ''positive'' for the couple.

He said: ''I hope to resolve my marriage in a positive fashion.'' Michael's eldest son, 34-year-old Cameron - whose mother is the actor's former wife Diandra Lucker - is currently in solitary confinement in jail for drug offenses and the 'Wall Street' star believes he has been given a tougher sentence because of his famous father.

Speaking to America's GQ magazine - who named him Diva of the Year - Michael said: ''They gave him an additional four and a half years to his sentence [after he was caught with drugs in prison] and put him in solitary for eleven months, and no family visits for two years.

''[The extra sentence is] the longest by far in the history of the United States penal system. You'd have to ask this judge why. They don't want [judges] to look soft on a white kid whose parents are celebrities.''