Nathan Fielder's nearly three-hour documentary about disgraced entrepreneur Elizabeth Holmes is running up numbers at the box office.

The film, "You Can See Everything," grossed $15 million in the US and Canada during its opening weekend, according to The Numbers, an industry trade publication.

That's the best opening weekend for a documentary this year. "Melania" had the second-biggest opening weekend for a documentary after its release in January. It grossed $7.1 million.

The film's financial success is matched by viewer reception, too. It scored a whopping 99% among critics on Rotten Tomatoes, the movie-rating site, and a 98% among regular audiences.

Directed by Fielder and Lance Oppenheim, the picture offers a remarkably revealing portrait of Holmes, who was convicted of defrauding investors with her blood-testing company, Theranos.

Theranos was at one point valued at $9 billion. It said its product could run hundreds of medical tests using just a pinprick of blood from a finger, but investigations revealed the company was using expensive lab equipment to surreptitiously run the tests.

Holmes, as the company's CEO, was sentenced to 11 years in federal prison after journalist John Carreyrou published a withering investigative report in The Wall Street Journal, sparking what eventually became criminal charges.

Business Insider's Henry Chandonnet has seen the film twice so far. He called it "one of the most shocking, revelatory, and oddly funny films" he'd ever witnessed.

"It was twisty and worthy of seeing with fresh eyes," Henry reported.