This is Spinal Tap

If you come from the sixties, and have followed Rock & Roll, then you will understand the true genius of this mockumentary. So many references to stuff we used to take seriously. Flower power, Psychedelic Rock, Prog Rock, Glam Rock, Heavy Metal, the "Concept Album" & even The Beatles (the black album). It's all parodied beautifully. 

Tufnel explains that his custom Marshall amplifiers are louder because their volume knobs go to 11, whereas standard amps only go to 10, famously stating, "It's one louder, isn't it?

The amplifier knobs

The metal detector scene @ airport 

The dancing gnomes @ Stonehenge

The flower power phase