Michael Jackson’s damaged reputation began to recover the day he died.

The lurid accusations of child molestation that had dogged him for years fell to the background as fans around the world celebrated the entertainer who had gone from pop prodigy to global superstar over a four-decade career. Flash mobs from Stockholm to the Philippines re-enacted his video scenes, and his music sales again broke chart records.

Now, nearly 10 years after his death, the dark side of Mr. Jackson’s legend has returned through a documentary that rocked the Sundance Film Festival and is being championed by Oprah Winfrey. In addition to delivering a hit to his mended reputation, the film poses a significant risk to the Jackson estate, which has engineered a thriving posthumous career, including a Broadway-bound jukebox musical.

The four-hour documentary, “Leaving Neverland,” to be broadcast on HBO in two parts on Sunday and Monday, focuses on the wrenching testimony of two men, Wade Robson and James Safechuck, who say Mr. Jackson abused them for years, starting when they were young boys. While the accusations are not new, their revival in the #MeToo era, with its momentum of accountability for figures like R. Kelly, Harvey Weinstein and Bill Cosby, gives them new meaning.

“There has always been this shadow or cloud about Michael,” said Charles Koppelman, a longtime music executive who once served as a financial adviser to Mr. Jackson. “With this documentary about to be shown to millions and millions of people, and all the notoriety that it’s now getting, I think it will have a detrimental effect to the legacy and the estate.”

The estate has already begun its war on “Leaving Neverland.” It issued a series of fiery statements around the time of the film’s Sundance debut in January and has filed a petition in Los Angeles County Superior Court for arbitration, seeking $100 million in damages from HBO. In making its case, the estate — whose beneficiaries are Mr. Jackson’s mother and three children, as well as children’s charities — portrays Mr. Robson and Mr. Safechuck as “serial perjurers” for whom HBO has become “just another tool in their litigation playbook.”

The debate over the film is likely to be intense in black communities, where figures like Mr. Jackson and Mr. Kelly have their strongest defenders, said Yaba Blay, a professor at North Carolina Central University whose specialty is black racial and cultural identities.

“If you think R. Kelly tore black America apart, this is going to destroy us,” Dr. Blay said.

On Monday night, after the conclusion of “Leaving Neverland,” HBO and the Oprah Winfrey Network plan to broadcast Ms. Winfrey’s interview with Mr. Robson, Mr. Safechuck and the film’s director, Dan Reed.

In “Leaving Neverland,” Mr. Robson, 36, and Mr. Safechuck, 41, tell parallel stories of being drawn into Mr. Jackson’s inner circle as boys. Mr. Robson met Mr. Jackson on tour in Australia at age 5 and moved to the United States two years later to be near his idol. Mr. Safechuck was 8 when he was cast in a Pepsi commercial and met Mr. Jackson.

Both men say Mr. Jackson abused them while charming their families at his 2,600-acre Neverland compound in Los Olivos, Calif. He also warned them to keep their sexual relationship secret, the men say. READ MORE: https://www.nytimes.com/2019/03/03/business/media/leaving-neverland-michael-jackson-estate.html?rref=collection%2Fsectioncollection%2Farts&action=click&contentCollection=arts&region=rank&module=package&version=highlights&contentPlacement=1&pgtype=sectionfront