Special Victims Unit" actor created an emotional and revealing documentary about her mother, Jayne Mansfield, who died when Hargitay was just 3 years old.

I couldn’t believe that this truth, this bombshell for me, didn’t ever come to light," says the ‘Law & Order: SVU’ star about going public with her biological father’s identity in an HBO documentary on her mother,

In her new film, 'My Mom Jayne,' Mariska Hargitay reveals that she can finally see traces of herself in her late mother, Jayne Mansfield, which also extends to Hargitay's longest-running role as Olivi