Michael Douglas, 76, says he was mistaken for his daughter Carys', 18, grandfather during graduation - Daily Mail

Michael Douglas has revealed that he was mistaken for his daughter Carys' grandfather during her recent high school graduation in May.

Michael said that it was a 'little rough' but insisted that he's not going to take it 'personally' as the other parents at the ceremony were 'just trying to be nice'.

Graduation: Michael Douglas has revealed that he was mistaken for his daughter Carys' grandfather during her recent high school graduation in May (pictured with children - Dylan and Carys - and wife Catherine L-R at the ceremony) .

But I gotta tell you Kelly, it's a little rough when you're going out the doors and the other parents are saying, "Oh congratulations, you must be so proud of your granddaughter".'!

Milestone: The actor, 76, who shares Carys, 18, and Dylan, 20, with wife Catherine Zeta-Jones, 51, discussed the family milestone on Tuesday's episode of The Kelly Clarkson Show.

The actor revealed in May that Carys had graduated from high school and shared a collection of sweet photos to his Instagram to mark the milestone.   .

But I gotta tell you Kelly, it's a little rough when you're going out the doors and the other parents are saying, "Oh congratulations, you must be so proud of your granddaughter".'

The actor revealed in a 2019 interview with Closer Weekly that his daughter had decided to start attending boarding school. 

The previous year, Carys discussed her school life with Town And Country and said she would often face 'snide remarks about her father's age', she said: 'People would be like, "Your grandpa's here to pick you up".'   

Lovely: The actor revealed in May that Carys had graduated from high school and shared a collection of sweet photos to his Instagram to mark the milestone (Carys and her brother Dylan pictured during ceremony)