You cheered Jack Black in School of Rock, now give it up for Paul Green in the real thing. Green runs the Paul Green School of Rock Music in Philadelphia, and this fireball documentary from director Don Argott shows Green preaching the rock gospel to students ages nine to seventeen. "Dynamo" doesn't begin to describe Frank Zappa freak Green, who brings the cream of his crop to Germany to compete in the yearly Zappanale and makes believers of us all.

“Help Me”

Joni Mitchell wrote and recorded this song for her album Court and Spark, but she had to switch from her regular band to make the song sound exactly the way she wanted. "I had attempted to play my music with rock & roll players," she told Rolling Stone. "They’d laugh, 'Awww, isn't that cute? She's trying to teach us how to play.'" Mitchell switched to a jazz band, Tom Scott’s L.A. Express, and scored the biggest hit of her career in the process.