Since its original release in 1984, This Is Spinal Tap has evolved from a beloved cult film into a cinematic landmark: an all-time comedy classic that pioneered an entire genre, the mockumentary. Now, director Rob Reiner and his cowriters and costars, Christopher Guest, Michael McKean, and Harry Shearer, tell the complete story of the movie and its fictitious band-how they met, how Spinal Tap came to be, and how their low-budget indie film took on a life of its own. Reiner, Guest, McKean, and Shearer provide the backstories to the movie's famous lines-among them 'Hello, Cleveland!,' 'None more black,' 'You can't dust for vomit,' and 'These go to eleven'-and to such Tap anthems as 'Big Bottom' and 'Stonehenge.' Featuring never-before-seen photographs, band memorabilia, and personal reminiscences of their enduring creative partnership, A Fine Line Between Stupid and Clever will delight Tap-heads of all ages-just as the long-awaited Spinal Tap sequel is hitting theaters.