We also mentioned that the teenage model had a pretty striking resemblance to her mother, and now that they've posed for a magazine cover together, it's undeniable.
"They [paparazzi] would jump on the subway and sit right in front of me. I was like, six."
Carys, 15, and her mother, 48, looked like they could be sisters on the cover of Town & Country's September issue.
The up-and-coming model also gave an interview about growing up with celebrity parents, and revealed it hasn't always been easy.
"I hated it," she admitted. "I used to get really upset. They [paparazzi] would jump on the subway and sit right in front of me. I was like, six. I was confused."
Even during her teenage years, tabloid coverage of Michael Douglas' cancer battle took a toll on his daughter.
"There's this picture of my dad and it's like, Michael Douglas Cancer Again, Dying In a Month," she told the magazine.
"I just started crying. I was like, 'Why didn't my parents tell me this?!' Only it wasn't true. People just always want a story to tell."
"The Douglas Dynasty"
While growing up in Hollywood can be tough, Carys has no shortage of role models in her family. Along with her parents, her grandfather is veteran actor Kirk Douglas.
And unlike some stars, Carys says her parents were committed to raising their children the right way.
"My parents do a really good job of reality-checking me and being like, ‘Look around you. The life you have is extraordinary,'" she said.
Zeta-Jones says that approach was definitely deliberate.
"What I instilled in my kids, and I’m very, very proud of it, is manners," she said. "There’s nothing worse than a privileged kid without manners. I drilled it into them like boot camp."
"She knows she cannot roll her eyes at me, or huff and puff around me. I never did it to my mother, and she’s not doing it to me."
But while her parents have supported her modeling career, Carys admits she was sometimes upset to be born into fame.
"When I was younger I didn’t like the idea of having this name attached to me, this kind of 'Douglas dynasty' stuff," she explained.
"I think what bothers me the most is that people think I don’t work hard for it. That anything I do gets handed to me. When, honestly, I feel like it’s the opposite. I feel I need to constantly prove myself to people — that I am not just my parents’ daughter."
It helped that Carys didn't even catch on that her father was famous until just a few years ago. "I though my dad was a pancake maker," she jokes.
And fellow schoolkids fixated on Douglas' age, not his fame, when they teased Carys at school.
"People would be like, 'Your grandpa's here to pick you up,'" she remembered.
"I’ve never had to turn to Carys and say, ‘I think that’s a little inappropriate."
These days, Carys is more comfortable in the spotlight. She's a rising star in the modeling world, who has already worked with designers like Michael Kors and Dolce & Gabbana.
Carys says she wants to follow her own "individual style," but calls her mother a "fashion icon."
"She’s modern but age-appropriate,” Zeta-Jones says about her daughter. “I’ve never had to turn to Carys and say, ‘I think that’s a little inappropriate.'"
"Once she said, ‘Mom, I really like this romper.’ I went, ‘Mmm, but don’t you think it’s cut a little too long? Shouldn’t it be shorter?’"
"She went, ‘Mom, you’re the only mother in the world that would tell a 15-year-old girl that the romper should be shorter.'"
Maybe it's time for Carys to start giving her mom fashion advice. But of course, she has a lot to learn - and a great set of parents to give her advice.
Don't you think the resemblance is uncanny?
Here are more interesting stories about celebrity children:
- Reese Witherspoon's 'mini-me' daughter is headed to college.
- Heath Ledger's daughter Matilda looks just like her famous dad.
- 15 celebrity couples you didn't know had kids together.