[Catherine Zeta-Jones] and [Michael Douglas] are currently enjoying a holiday which very much reflects their A-list status - lunching at Club 55 in St Tropez and yachting off the coast of Italy's uber-cool Portofino. But two young people remain blithely unaware of the Hollywood heavyweights' stature - their children. The Welsh beauty has revealed she and Michael have kept their son Dylan, seven, and five-year-old daughter Carys so sheltered from fame they think their movie star dad is a chef.