“I don’t think they will ever have a true sense of [my fame],” Julia Roberts told Harper’s Bazaar of her kids: son Henry, 11, and twins Hazel and Finn, 13

PHOTO: ALEXI LUBOMIRSKI

For an actress as talented and beloved as Julia Roberts, it’s not easy hiding her superstar status from her family.

The Homecoming star, 50, recently opened up in an interview with Oprah Winfreyfor Harper’s Bazaar‘s November cover story, explaining that she has learned how to field questions about her level of notoriety from her three children: 11-year-old son Henry Daniel and twins Hazel Patricia and Phinneaus “Finn” Walter, 13.

“I don’t think they will ever have a true sense of [my fame],” said Roberts. “I think I told you once when they were starting to figure it out, it was like, ‘You’re famous?’ And I said, ‘I think a lot of people might have seen the movie that I’m in or might know who I am.’ ”

The kids needed more detail, though — and how better to approach that than by asking about their favorite pop star? As Roberts recalled, “Maybe an hour goes by. [Then they ask,] ‘Are you more famous than Taylor Swift?’ ”

“Do you imagine a day when you all sit down as a family and watch Pretty Woman?” asked Winfrey, 64.

“No,” said the actress, although, “I imagine a day that we all sit down and maybe watch My Best Friend’s Wedding.”

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In her upcoming drama film Ben Is Back, out Dec. 7, Roberts plays the mother of Lucas Hedges‘ character Ben Burns. And her youngest child made an interesting point about his mom’s newest film role that ended up making him and his older siblings a couple of new friends.

“My son Henry had said to me, ‘Mom, why in movies when you play somebody’s mom, why is it always a boy?’ And I said, ‘Wow, I don’t know. You know what? We’re going to have Lucas come over and you guys are going to meet him.’ ”

“So Lucas came over, as did beautiful Kathryn Newton, who plays my older daughter,” Roberts shared. “I would just send them down to the beach with my kids. ‘Go for a swim, and I’ll see you guys in an hour and I’ll have lunch ready.’ ”