In Mariska Hargitay's new film 'My Mom Jayne,' which premiered at the Tribeca Festival on June 13, it is revealed she was accidentally left at the scene of the crash which killed her mom, Jayne Mansfield.

Mariska Hargitay’s new documentary, “My Mom Jayne,” reveals heartbreaking new information about the night her mother Jayne Mansfield died. While shooting her directorial debut, the “Law & Order: Special Victims Unit” star learned how she was accidentally left behind at the scene of the car crash which killed her mother and two other people.