The classic 1984 mockumentary "This Is Spinal Tap" follows the fictional, aging English heavy metal band, "Spinal Tap," on a disastrous American tour promoting their new album, "Smell the Glove". The film documents the band's creative clashes, declining audiences, ill-fated drummers, and the general absurdity of the rock and roll scene, offering a hilarious and insightful satire of the music industry. Directed by Rob Reiner (who also plays the documentarian Marty DiBergi), the film stars Christopher Guest as Nigel Tufnel, Michael McKean as David St. Hubbins, and Harry Shearer as Derek Smalls.