The Maysles brothers' 1970 portrait of the Rolling Stones' Altamont concert and its murder. The end of the sixties, captured.
From Wikipedia
"Gimme Shelter" is a song by the British rock band the Rolling Stones. Written by Jagger–Richards, it is the opening track of the band's 1969 album Let It Bleed. The song covers the brutal realities of war, including murder, rape and fear. It features prominent guest vocals by American singer Merry Clayton.