In her new documentary "My Mom Jayne," now on HBO Max, the "Law & Order: SVU" star opens up about the famous mother she barely had a chance to know.

When Mariska Hargitay was 3, she and two of her brothers survived the car accident that killed their mother, bombshell movie star Jayne Mansfield. The kids were asleep in the back seat; the three adults in the front—Mansfield,

In her debut as a documentary director, Mariska Hargitay explores the life of her mother, the Hollywood actor Jayne Mansfield, who died at 34.