Kate Winslet in “Insurgent” (2015).Photo:Andrew Cooper/Summit Entertainment/courtesy Everett Collection

Insurgent, Kate Winslet, Ansel Elgort

Andrew Cooper/Summit Entertainment/courtesy Everett Collection

Kate Winslet’s son went directly to the source when curious about his mom’sDivergentfate.

Veronica Roth, the author behind the books that inspired the films, tells PEOPLE that, while visiting the set once,Winslet’s son Joe, now 19, asked her about killing off Jeanine in the second installment,Insurgent.

“The best thing that happened was probably when her son was on set and he came up to me and he said, ‘Why did you kill my mom?'” recalled Roth, 35. “I said, ‘I didn’t know it would be your mom when I did it,’ And he was like, ‘That makes sense.’ That was it. He walked away after that.”

The threeDivergentfilms came out in 2014, 2015 and 2016. Roth remembers Winslet, 48, as being “so friendly” during the making of the movies.

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Kate Winslet and Veronica Roth at the “Divergent” premiere March 18, 2014 in Los Angeles.Kevin Winter/Getty

Actress Kate Winslet and writer Veronica Roth arrive at the premiere of Summit Entertainment’s “Divergent” at the Regency Bruin Theatre on March 18, 2014 in Los Angeles, California

Kevin Winter/Getty

Winslet was pregnant with herthird child, son Bear, when she filmedDivergent. She revealed back in 2013 that she took the part in the YA franchise partially as a way to impress her kids. She’s also mom todaughter Mia, 23.

Kate Winslet in May 2022.John Phillips/Getty

Kate Winslet attends the L’Oréal Paris Lights on Women Award dinner at Hotel Martinez on May 27, 2022 in Cannes, France

“In fact, my daughter, two days ago, came home from school and went, ‘Mom! You’re never going to believe it. Rufus came up to me at school and said, ‘Is your mom really inDivergent? Is there going to be a premiere? Can you get me a ticket?’ "

Winslet joked, “My daughter suddenly [had a] newfound respect. ‘My mom is actually really cool.’ I’m just going to go with that: I did it because I wanted my kids to think I was cool.”

Since wrapping up theDivergentseries, Roth has written several other books, includingPoster Girl, now in paperback, and, coming in May,When Among Crows. She says, though, herDivergentcharacters continue to live on in her imagination.

“I’ll be like, ‘What if that person had lived? What if a completely different plot point had happened or a different perspective?’ But I don’t think about it that often,” says Roth.

“I’ve got a lot of characters living in my head now, but every so often. I think they were the strongest point of the series, the characters, so they’re the part that lives on the most for me.”

source: people.com