1. Spinal Tap (1984 – Rob Reiner)
Spinal Tap achieved its incredible popularity by striking the right balance between ‘indie’ and ‘funny.’ A classic rock-n-roll lifestyle comedy, this 1980s “mockumentary” is canny, unpretentious, and strangely immersive. While most audiences were confused by the innovative new style that mimicked a documentary film, a select group of fans loves the ridiculous characters and dry humor. Its unexpected popularity led to very successful reunion tours, compilation albums, and a sold-out concert at London’s Wembley Arena. Spinal Tap remains one of the greatest cult movies of all time.