Mariska Hargitay is finally trying to understand her late mother, the actress, sex symbol and Playboy playmate Jayne Mansfield. And she's taking audiences along for the ride in her film debut, "My Mom Jayne.

Mariska Hargitay was just 3 years old when her mother, Hollywood icon Jayne Mansfield, died in a car accident at the age of 34. Nearly six decades later, the Emmy-winning actress makes her feature directorial debut with the documentary My Mom Jayne,

HBO is previewing My Mom Jayne, a documentary about Jayne Mansfield, as told through the eyes of her daughter Mariska Hargitay. Hargitay, 61, an actress best known for playing Olivia Benson on Law & Order: SVU,