“People would say, ‘I can't believe your first movie would be improvised; there'd be no script. And that's scary.’ And, to me, it was the opposite. I wasn't scared,” says Rob Reiner. The film, "This is Spinal Tap," was a fake documentary about a fake band. The movie became a cult classic and it launched a new genre in film and television. “Spinal Tap" is credited with launching the mockumentary genre and inspired hit shows like “Best in Show,” “Waiting for Guffman,” “The Office,” “Parks and Recreation,” and “Modern Family.” #robreiner #spinaltap #mockumentary #unscripted