Rising from the vibrant Detroit music scene of the 1970s, Alice Cooper revitalized hard rock with his theatrical flair, characterized by long hair and sequins. His performances, which included shocking acts like chicken-slaughtering and dead-baby-eating, terrified Middle America and solidified his status as a glam metal legend. “Super Duper Alice Cooper,” meticulously assembled from rare archival footage, delves into the life of Vincent Furnier, the preacher’s son who became entangled in the persona he created.