In the chilling trailer for HBO's upcoming documentary, Wade Robson and James Safechuck allege Michael Jackson abused them as children

Leaving Neverland was one of the most-buzzed about films to debut at the Sundance Film Festival last month, and now viewers have a first look at the two-part documentary featuring allegations that Michael Jackson was sexually abusive.

In the trailer, James Safechuck, 37, and Wade Robson, 41, and their mothers speak about their first time meeting the late singer when they were children. “The days were filled with magical, childhood adventure experiences. Playing tag, watching movies, eating junk food,” says Robson in the clip. “Anything you could ever want as a child.”

Through old videos and photos, Safechuck and Robson can be seen spending time with Jackson on private planes and at the singer’s Neverland Ranch.

Michael Jackson
| Credit: Michael Ochs Archive/Getty

But the clip quickly takes a turn as Robson and Safechuck allude to the disturbing allegations that Jackson abused them. “Secrets will eat you up. You feel so alone,” says Safechuck.

Adds Robson: “He told me if they ever found out what we were doing, he and I would go to jail for the rest of our lives … I want to be able to speak the truth as loud as I had to speak the lie for so long.”

Jackson’s estate issued a statement to PEOPLE in January ahead of the Sundance premiere, and blasted the documentary (directed and produced by Dan Reed) for its “pathetic attempt” to make money off of the pop singer.

“This is yet another lurid production in an outrageous and pathetic attempt to exploit and cash in on Michael Jackson,” the statement read. “Wade Robson and James Safechuck have both testified under oath that Michael never did anything inappropriate toward them. Safechuck and Robson, the latter a self-proclaimed ‘master of deception’, filed lawsuits against Michael’s Estate, asking for millions of dollars. Both lawsuits were dismissed.”

“This so called ‘documentary’ is just another rehash of dated and discredited allegations,” the statement continued. “It’s baffling why any credible filmmaker would involve himself with this project.”

Jackson was 50 years old when he was found dead on June 25, 2009, in his L.A. mansion and is survived by his three children: Prince Michael, 21, Paris, 20, and 16-year-old “Blanket,” who now goes by Bigi.

Leaving Neverland premieres Mar. 3 and 4 on HBO.