For some 26 years, Mariska Hargitay has been a member of an elite squad on the small screen. Now the Law & Order: SVU actress is ready to tell some new stories, namely those surrounding her mother, legendary screen siren Jayne Mansfield. 

But among the takeaways shared in Mariska's documentary My Mom Jayne—which premiered at the Cannes Film Festival on May 17—the most shocking was that her late father, former Mr. Universe Mickey Hargitay, is not actually her biological dad.