Julia Roberts’ 20-year-old son, Phinnaeus Moder, is putting his skateboarding skills to the test, and his dad caught it all on video. Danny Moder, Roberts’ husband and a renowned cinematographer, shared a rare clip of their son on Instagram Monday,

Julia Roberts' son Phinnaeus, 20, shows off his skateboarding skills in a rare video shared to the actress' husband's Instagram page. Roberts and husband Danny Moder share son Henry, 18, and twins Hazel and Phinnaeus,

Julia Roberts' husband Danny Moder shared a video of their 20-year-old son Phinnaeus showing off his skateboarding skills, expressing admiration for their eldest.