Colin Farrell recalls 'monumental' moment with son who has rare genetic disorder

The actor's son James has a rare genetic disorder called Angelman syndrome.

When talking about his journey as a father, he could recall only a happy moment about his son with model Kim Bordenave, 13-year-old James.

"When James took his first steps a couple weeks short of his 4th birthday, it was pretty amazing and humbling to see," Farrell told People magazine.

Farrell, 41, also has a 7-year-old son, Henry, with Polish actress Alicja Bachleda-Curus.

The actor said that a child's first steps are remarkable for every parent, but for him and his family, it meant something even more.

"People talk about the children taking the first step. It’s obviously a monumental moment, and it's been represented in film," Farrell said. "But to be told your child may never take the first step and then see those first steps is just kind of a different sport altogether."

He said, "I decided, after consulting with James' mother, that I wanted to talk publicly about the pride and joy I had in our son."