The beautiful actress looked every inch the proud mum as Damian, 12, joined her on the red carpet at the Mandarin Oriental Hotel in London on Tuesday, 24 March.
How grown up is Damian looking?!
Liz plays Queen Helena in The Royals, which is E!'s first scripted drama. It's about a fictional Royal Family filled with secrets, scandal and plenty of sex!
It's from the creator behind our teen fave One Tree Hill and a teaser tells us: "The 60-minute drama series depicts the lives of a fictional monarchy in modern times where power is everything, limits do not exist, and trust is a luxury this family can't afford."
Ooh! We'll be tuning in!
The Royals starts tonight at 9pm on E!
Meanwhile, Liz has suggested that son Damian could follow her footsteps and try for a career in Hollywood, although maybe not as an actor.
"Damian is 13 next month," she told ITV's This Morning. "I didn't want him to be a city kid, I wanted him to be a country kid. Last summer during his vacation from school, he was on the film set and he loved every single second of it.
"He adores it. He really wants to do it. He's not sure [whether to be in front of the camera or behind] but he likes all of it."