The Grateful Dead

This captures the GD in their prime and in front of a loving, hometown audience in 1974. There is concert footage mixed with some trippy animation, but the real time capsule is all the footage of their fans that is included. You get to see a lot of Deadheads grooving to the music, goofing around, dancing, and verbally expressing themselves. Apparently the post-production and editing were very expensive, time-consuming, and stressful. I don't think it was a big hit in the movie theatres, but like most of their music, it stands the test of time very well. There would be plenty more live GD videos in the years to come. The same group of shows also led to their "Steal Your Face" live album and its famous logo.