I've been working my way through watching (and re-watching) an ever-growing list of music documentaries/films. Some have been impeccably shot (20000 Days On Earth), some are altogether questionable (Sound City), and others would be magnificent if they just left The Edge out of it (It Might Get Loud). Have a gander through my list and let me know if there is any others you think are required viewing. 

Muscle Shoals / Sound City / 20000 Days On Earth / Searching For Sugarcane / 12 Feet From Stardom / This Is Spinal Tap Laurel Canyon / The Punk Singer / It Might Get Loud / Last Days / Almost Famous / Inside Llewyn Davis / Whiplash