Mariska Hargitay revealed a decades-long secret about her biological father in her new documentary. The “Law & Order: Special Victims Unit” star is the daughter of the late Jayne Mansfield and Mickey Hargitay. Mansfield died in 1967 when her daughter was 3, while Mickey Hargitay died in 2006.

Mariska Hargitay fought back tears while basking in a four-minute standing ovation at Saturday's Cannes Film Festival premiere of "My Mom Jayne," a new HBO documentary about her mother, Jayne Mansfield.

In an exclusive interview, Hargitay opens up about ‘My Mom Jayne,’ a documentary that paints an unvarnished portrait of her Hollywood bombshell mother—and reveals that Hargitay’s biological father is not Mickey Hargitay,