Amanda Seyfried is forever indebted to Mean Girls.

In an interview on the Happy Sad Confused podcast, Seyfried reflected on the 2004 teen comedy and the “unadulterated fun” she had while making the film when she was 17.

Host Josh Horowitz reminded Seyfried how loved the film is to this day. “Until the day you die, a 14-year-old girl will come up to you every day and quote you as if it just came out the day before.” Horowitz said.

“I hope they quote it on my grave,” said Seyfried, who played Karen Smith in the movie. “That’s an organic moment. It was, in many ways, a perfect movie, and people relate to it, still. It connected us, and it continues to. I will always be excited to talk about it,” adding “Any day, I’ll honor that movie for what it did for me as a person.”

The film, written by Tina Fey,...