Michael Douglas jokes he's mistaken for his kids' grandfather

The 79-year-old Hollywood legend has admitted that raising kids later in life has proven a challenge at times. Michael, who shares 23-year-old son Dylan and 21-year-old daughter Carys with his wife Catherine Zeta-Jones, recalled an awkward encounter when he visited one of his children at university. “This is not grandfather's day, this is parents' day. I say, ‘I am a parent!’ That was a rough one.” The Behind the Candelabra star also has a 45-year-old son Cameron with his ex-wife Diandra Luker. Michael has admitted that he didn’t always spend enough time with his firstborn…”