"Leaving Neverland", a four-hour long, two-part documentary is built around the testimony of Wade Robson and James Safechuck, who have alleged that they were abused as children by Jackson.
Reed has confirmed via Twitter that the documentary is now second only to HBO's Scientology expose as the most viewed of the past decade, reports mirror.co.uk.
The filmmaker is now hoping to persuade more alleged victims of Jackson to come forward, with plans that the documentary will focus on Jordan Chandler and Gavin Arvizo, whose allegations sparked Jackson's trial in 2005.
Chandler received a $23 million payout from Jackson in 1994.
In a previous interview, Reed said: "What's interesting is to look at the Jordan Chandler civil case and criminal trial. Those are two films I'd like to make. But Gavin and Jordan would have to come forward."
Jackson's estate has vehemently denied the claims of Chandler and Arvizo.
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