
A 1970 documentary film directed by Albert and David Maysles chronicling the last weeks of the Rolling Stones' 1969 US tour which culminated in the Altamont Free Concert.
in the documentary Gimme Shelter, Sunny Barger, the guy that was the head of the Rolling Stone uh the head of the Hell's Angel stated that the Hell's Angels were not interested in policing the event
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"The transcript explicitly names the documentary 'Gimme Shelter' while discussing the events of the Altamont concert and the role of the Hell's Angels."