Michael Wadleigh’s *Woodstock* (1970) is frequently lauded as the quintessential rockumentary, a euphoric chronicle of peace, music, and communal utopia. Yet, for those seeking not just nostalgic reverie but a deeper interrogation of the 1960s counterculture, its spiritual successor—and grim antithesis—offers a far more sobering perspective. *Gimme Shelter*, released the same year and directed by Albert and David Ma…