4.5; one of the best rock concert documentaries that understand both the look and sound of rock n' roll, and executed with adequate technical craft to capture all the nooks and crannies of a great live show
Aguirre is another great example of what cinema is best at, creating a "progression of moods and feelings" (Kubrick) like music rather than fiction. You understand the film on a visceral level, by what you feel more than the plot details.