United Kingdom, Sept. 24 -- Catherine Zeta-Jones has branded husband Michael Douglas "the ultimate nepo baby".

The couple's children, Dylan, 26, and Carys, 23, are both keen to follow in their parents' acting footsteps and the 56-year-old actress has doubled down on her insistence that the tag is unfair, arguing the Wall Street actor has more than made a name for himself outside of the shadow of his father, late Hollywood legend Kirk Douglas.

Speaking on BBC Radio 4's Woman's Hour, Catherine said: "If it was any other industry whether it be finance or business, or if you're a lawyer, or I know all my grown-up surgeon doctor friends have kids going into that industry, and they don't get labelled.

"I think, more importantly, I'm married ...