Abby Ryder Fortson may be leading a big blockbuster movie with vets like Rachel McAdams and Kathy Bates, but she's no acting newbie. The 15-year-old stars as the titular lead of "Are You There God? It's Me, Margaret" (out on April 28), the long-awaited movie adaptation of Judy Blume's beloved 1970 book, but she's been featured in plenty of other onscreen projects - most notably, in the Ant-Man movies as Cassie Lang.

Ryder Fortson, who started acting when she was four years old, apparently caught the acting bug from her thespian parents, John Fortson and Christie Lynn Smith. During an April 26 interview on "Jimmy Kimmel Live!," the young star recalled when her parents would take her to their auditions when she was a kid. "I would sit on the producer's couch and I'd just watch them," she shared. "And one day, when I was about three-and-a-half or something, I just turned to them and was like, 'I want to do this now. Please get me an audition, I want to be an actor.'"

Read ahead to learn more about Ryder Fortson and her budding acting career - from who her biggest influences are to how she secured her "Are You There God? It's Me, Margaret" role.