“I’ve spent my whole life distancing myself from my mother,” goes a familiar voice at the beginning of My Mom Jayne. The mother in question is Jayne Mansfield, the actress and Playboy playmate who was a sex symbol in 1950s and 60s America. The voice belongs to Mariska Hargitay, Mansfield’s daughter, who lost her mother in a car accident when she was just three, and later rose to fame as a fixture on Law and Order: Special Victims Unit. Despite Hargitay’s desire to “do things differently” from Mansfield, her role on the show made sex an important theme in her own life, too—she became a poster woman for putting sex offenders behind bars. Now, in her directorial debut, Hargitay revisits Mansfield’s legacy, and parses her mother’s private existence from her public persona. Among other things, Hargitay reveals that Mickey Hargitay, the actor and body builder whom Mansfield was married to at the time of her birth, is not her biological father. The film, which had its premiere at Cannes, is streaming now. —Julia Vitale