When Ione Skye was in middle school in the early 1980s, a group of popular, mean girls she calls “the Aprils” brought her — shy, bookish, not yet famous — into their intimidating fold. She was surprised they even knew her name.

“Part of me wanted to punch the girls’ smug faces,” she writes in her memoir “Say Everything,” due out from Gallery Books on March 4. Another part of her, though, “burned with excitement.”

Those preteen memories, which she wrote down, felt important. Cinematic, even. “My own story captured my imagination,” Skye told me during a video interview from Los Angeles. “I had a big ego, I guess.”

For almost 40 years, since Skye made her film debut at 15 alongside Keanu Reeves, Crispin Glover and Dennis Hopper in the teen crime drama “River’s Edge,” her name has been associated with powerful people, mostly men. There’s her father, the Scottish folk singer Donovan, whose early abandonment of Skye, her mother and brother, connects her experiences from “Girlhood,” as the first section of the book is called, to “Womanhood,” the second.

There’s her relationship with the Red Hot Chili Peppers frontman Anthony Kiedis, which started when she was 16. There’s her marriage to Adam Horovitz, better known as Ad-Rock from the Beastie Boys, which ended in divorce after Skye (“I was a serial cheater,” she writes) rediscovered her bisexuality and embarked on a series of affairs with women, including Jenny Shimizu, Ingrid Casares and Alice Temple. She’s now a mother of two and has been married to Ben Lee, a musician, since 2008. They live in Los Angeles but just spent the last year in Sydney.