ARNOLD SCHWARZENEGGER A LOVE CHILD, THE HOUSEKEEPER & A MESSY DIVORCE!

The action star usually blows away his opponent with guns, but this time he's dropping bombs!

In legendary actor Arnold Schwarzenegger's new Netflix documentary Arnold, nothing is off limits.

Arnie, 75, sat for hours of interviews, covering everything from his violent childhood to his messy divorce from his wife of 35 years Maria Shriver.

"No topic was off the table and we [covered] all of his popularly known failures or controversies," says the documentary's director Lesley Chilcott.

1 The moment he told his wife he had a love child

Arnold says his "heart stopped" when his then-wife Maria Shriver, 67, confronted him in 2011 with her suspicions that he'd had an affair with their housekeeper Mildred Baena, 62, and fathered a son with her.

"Maria and I went to counselling once a week and during one of the sessions the counsellor said, 'I think today Maria wants to be very specific about something. She wants to know if you are the father of Joseph," Arnold shares.

"I thought my heart stopped. And then I told the truth. 'Yes, Maria, Joseph is my son!"

Arnie admits Maria was "crushed" by his confession that he'd had a fling with Mildred in 1996.

"I think that I have caused enough pain for my family because of my f**kup," Arnie - who shares daughters Katherine, 33, and Christina, 31, and sons Patrick, 29, and Christopher, 25, with Maria continues. "Everyone had to suffer. Maria had to suffer. The kids had to suffer. Joseph. His mother. Everyone.

"I am going to have to live with it the rest of my life. People will remember my successes and they will also remember my failures."