from The Telegraph.
The phrase was coined in the early 1960s to describe a form of “fly-on-the-wall” film making, shorn of interviews, lights and preachy voice-over, that seemed to promise a true record of events. Leacock was one of a team of film-makers (including DA Pennebaker and Albert Maysles) who, in the early 1960s, devised the portable, hand-held cameras and synchronous sound equipment that formed the basis for the movement. It was as much ideological as technological, championing non-judgmental observation as the purest form of documentation.
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