Sunshine Daydream (1972)
Sunshine Daydream is a music documentary film starring the rock band the Grateful Dead. It was shot at their August 27, 1972 concert at the Old Renaissance Faire Grounds in Veneta, Oregon. Unreleased for many years, the movie was sometimes shown at small film festivals, and bootleg recordings of it circulated on VHS and DVD, and as digital downloads. A digitally remastered and reedited official version of the film was released on August 1, 2013, showing only one time in selected theaters. It was screened with Grateful Days, a new documentary short that includes interviews with some of the concert attendees. Sunshine Daydream was released on DVD and Blu-ray on September 17, 2013.
More at Wikipedia.