Sara Cunningham, a mother from Oklahoma City, Oklahoma and founder of the nonprofit Free Mom Hugs, went viral last summer when she posted on Facebook that she would be a stand-in mom for people whose own mothers refused to attend their weddings because of their sexuality. Now Jamie Lee Curtis has bought the rights to Cunningham’s 2014 memoir, How We Sleep At Night, about how she came to terms with her son’s sexuality, according to the Washington Post.

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Curtis plans to make a movie about Cunningham. She spent three days in September with her family and was moved by her story, and posted a photo of herself and Cunningham together—which caused fans to speculate about a potential movie months before the news was revealed.

“I was moved by her journey,” Curtis tells the Washington Post. “And I continue to be thrilled as her movement is catching on. I hope to do justice to her story and the story of so many marginalized people in the LGBTQ community.”

As Cunningham wrote in her original Facebook post: “PSA. If you need a mom to attend your same-sex wedding because your biological mom won’t, call me. I’m there. I’ll be your biggest fan. I’ll even bring the bubbles.”

She was a stand-in mom in at her first wedding this past November and has three other LGBTQ+ weddings booked for 2019. She’s also officiated the weddings of almost a dozen couples in Oklahoma, Texas and Mississippi.

“I never dreamed that something I posted out of frustration would take off like this,” she tells the Post. “But I’m glad that it did. I’ve been hearing from lots of other parents who are also willing to ‘stand up and stand in.'”