From Open Culture, the original clip that got the Spinal Tap movie greenlighted:
When This is Spinal Tap came out over 30 years ago, it went over a lot of people’s heads. “Everybody thought it was a real band,” recalled director Rob Reiner. “Everyone said, ‘Why would you make a movie about a band that no one has heard of?’”
It’s hard to believe that lines like “You can’t dust for vomit” failed to come off as anything but a joke. But, to be fair, Hollywood comedies were generally straight-forward affairs in the ‘80s. Think Blues Brothers or Fletch. Fake documentaries weren’t a thing. And This is Spinal Tap looks and feels exactly like a rock documentary – the hagiographic voiceover, the shaky camera, the awkward interviews. The movie was just as unscripted as rock docs like Don’t Look Back, The Song Remains the Same and The Kids Are All Right. The film is not only a parody of the generally overblown silliness of rock and roll, it is also, as Newsweek’s David Ansen notes, “a satire of the documentary form itself, complete with perfectly faded clips from old TV shows of the band in its mod and flower-child incarnations.”
