1. Nirvana - 'Smells Like Teen Spirit'
In the summer of 1991, Nirvana spent a day on a soundstage in Culver City with first-time video director Samuel Bayer and a ton of extras dressed up like high-schoolers at a goth pep rally that devolves into a punk-rock riot. Nobody present that day could have possibly imagined they were making something that would forever change the music business and eventually become the most iconic piece of film of the entire decade. The whole thing cost less than $50,000.