Selma Blair’s son Arthur is already delivering some serious sass, and his latest response has us in stitches! During a recent chat with People at The Daily Front Row’s 9th Annual Fashion Los Angeles Awards, Blair revealed that her 13-year-old son Arthur refuses to watch her movies, and his reason is absolutely hilarious (and a bit sassy)!

When Blair asked Arthur why he’s never interested in watching her films, his answer was priceless. “I said, ‘Why don’t you ever want to watch a movie of mine?’ He said, ‘Because all your movies are in black and white.’ I was like, ‘Pardon? Come again?’ He’s like, ‘Aren’t they?’” Blair recalled. “I die. He thinks that I’m from 1930. I’m not joking. My son thinks all my films are in black and white.”

The humorous misunderstanding shows Arthur’s sassy side, and Blair couldn’t help but laugh at the idea of her films being decades older than they actually are.

But it turns out Arthur has seen at least one of his mom’s iconic films—Cruel Intentions. Blair shared that when she asked him about his weekend plans, he revealed that he and his girlfriend watched the 1999 classic. “I spoke to my son and I said, ‘What did you do with your girlfriend this weekend?’ He’s like, ‘We watched Cruel Intentions.’ I couldn’t get him to watch a film of mine ever,” Blair said. “I mean, I’ve tried, he’s never watched. But with a girl, he’ll watch Cruel Intentions, and I was like, ‘Oh dear,’” she laughed. She also noted that her son still “enjoyed” the movie.

Despite his sassy refusal to watch most of her other films, it seems Arthur did enjoy his mom’s Cruel Intentions role!

Blair, who shares Arthur with her ex, Jason Bleick, also shared her joy in watching her son grow up. In a previous interview with SheKnows, she said, “Teenagers are amazing. I’m so glad he’s not an infant now. There are so many funny things. He still is a kid, but he does know Mom’s boundaries, and I’m just proud of him. My little saint, he’s a regular kid and I’m very lucky.”

Blair also acknowledged the unique challenges of raising a teenager, adding, “It’s a different kind of relationship for sure, but it’s really normal for these kids to break away anyhow. And the ones that are closest sometimes rebel. [But] I know that’s normal. I wasn’t close enough with my mother to treat her like this—you know, so mean. He’s still good.”