T here are surprise smash hits, and then there’s You Can See Everything, Nathan Fielder’s documentary-cum-psychodrama about the disgraced US entrepreneur Elizabeth Holmes. It arrived in US cinemas with much buzz: this was, after all, an A24 production, helmed by one of TV’s leading performance-art pranksters. But You Can See Everything has surpassed all expectations to become an undeniable hit, and is now the highest-grossing US documentary in 15 years just two weeks after its release.

Co-directed by Lance Oppenheim, it is a surreal and masterly epic; at a press screening in London, the audience appeared to be alternately spellbound by its comedic elements and repulsed by the sheer grossness of some of its characters. That grossness, it should be mentioned, doesn’t pertain only to Holmes, who was sentenced to more than 11 years in prison (this has since been reduced several times ) for defrauding investors, after the collapse of her sham blood-testing startup Theranos).…