The 30-year odyssey of the Bay Area’s own Grateful Dead was the most unlikely success story in rock 'n' roll history. Famously averse to publicity and seemingly incapable of recording radio-friendly hits, they flouted music industry convention by giving their live music away to a global network of tape traders and becoming the highest grossing concert act in America through word of mouth alone. With a soundtrack that captures some of the band's most dynamic live performances as well as unguarded offstage moments and never-before-seen interviews, footage and photos, Amir Bar-Lev’s documentary ?explores the Dead's singular experiment in radically eclectic music making. (2017, 241 min + intermission, DCP)