In the new HBO docuseries Allen v. Farrow, the 76-year-old said that she is worried that he may act out against the documentary, according to a sneak-peek obtained by PEOPLE.
"I don't know, I'm just scared. I'm scared of him," the actress says in the upcoming doc, which will premiere on Sunday, February 21. "A person who has no allegiance to truth will do anything. A person who will do anything is somebody to be scared of.
"He'll do whatever he has to do to try to save himself from the truth, from the mess he made."
"If I could take it all back, I would," Farrow reportedly says in the doc. "I wish I'd never met him. That's my great regret of my life, to bring somebody like that who should never have been in the family."
The series will cover Allen and Farrow’s time together and the explosive affair with one of their adopted daughters, Soon-Yi Previn, whom the writer later married, as well as allegations of child abuse made against Allen.
Farrow’s adopted daughter, Dylan Farrow, who has accused Allen of sexually abusing her as a child, is also featured in the series. Allen denied the allegations.
"I remember my mom told me and [brother] Ronan [Farrow], 'Daddy took naked pictures of Soon-Yi.' And that was sort of the first instance where I thought, 'Oh… it's not just me,'" Dylan said, according to the report, in the doc.
Allegations of child abuse were first reported during the couple’s 1992 split, and while Allen was not charged, a Connecticut prosecutor Frank Maco said there was a probable cause for a criminal case. However, it's been reported that Maco did not want to put Dylan on the witness stand and re-traumatize her.
The coverage of Allen and Previn’s relationship then overshadowed Dylan’s allegations.
Allen and Farrow split in 1992 when she reportedly found naked pictures of Soon-Yi in his apartment. The series alleges that the affair may have begun during her senior year of high school, according to testimonies from his doorman, housekeeper and building manager at the time.
Allen claimed that Farrow had "coached" Dylan to accuse him of sexual abuse, which was denied by both women, according to the doc.
The series also raises eyebrows at Allen's films such as 1979’s Manhattan, in which a 42-year-old man becomes involved with a 17-year-old girl.
Allen is currently married to Previn, who is now 50. The couple has two daughters together but did not participate in the series; however, audiobook excerpts of his autobiography Apropos of Nothing are said to be included.
In 2014, Dylan wrote an open letter in the New York Times where she detailed the alleged sexual abuse she endured at the hands of Allen and asked that fans recant their support of the director.
"That he got away with what he did to me haunted me as I grew up. I was stricken with guilt that I had allowed him to be near other little girls," she wrote.
Allen v. Farrow will premiere on Sunday, February 21, at 9 p.m. ET. The four-part series will then release a new episode every Sunday at the same time.