Catherine Zeta-Jones has denied ever having plastic surgery, despite constant rumours of her going under the knife. Speaking to Good Housekeeping magazine, Zeta-Jones admitted that she wouldn't rule out plastic surgery in the future and doesn't judge those who have made the decision.

Catherine Zeta-JonesCatherine Zeta-Jones has denied ever having plastic surgery.

When asked if there was pressure in Hollywood to stay looking young, Zeta-Jones said: “You don't have to be a beauty queen to be an actress, the roles that are coming my way are different and more interesting.”

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"But I'm not anti-plastic surgery at all. Contrary to public opinion, I have not been under the knife ... yet, is what I say! If I feel like it, I'm going to go ahead and do it! If (surgery) makes you feel better, who am I to tell someone that it's wrong."

Zeta-Jones maintains her youthful appearance by exercising every day, which she says also keeps her mind healthy. "I really feel it's healthy for a body to sweat every day. I run on my treadmill or power walk outside,” she said. ”Then I do some bodywork and arm work and a bit of tap dancing every now and then.”

The actress also spoke about her 15-year marriage to Michael Douglas, which hit a rocky patch in 2013 when the couple temporarily separated. Speaking about overcoming their difficulties Zeta-Jones said: "It’s a long road and I think people today are so quick to throw in the towel on marriage."

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"You have to give it your best shot and not give up when the first problem arises, because that won’t be the last problem. There will be many more down the road.”