Gimme Shelter (1970)

The Maysles brothers' cinema verité masterpiece captures the Rolling Stones' 1969 Altamont Free Concert as a live requiem for the 1960s counterculture, when a Hell's Angels security detail killed Meredith Hunter within four feet of the camera. The film documents 300,000 attendees in a 10-acre racetrack. Its raw, unedited violence is more jarring than the polished archival rescue of Summer of Soul because it offers no distance from the tragedy. The recorded incident of Hunter's stabbing forces viewers to confront how utopian dreams collapsed under disorganization and distrust.