EPiC mixes concert footage with interstitial clips of Elvis just being Elvis, as if to collapse, as much as will ever be possible, the distance between his public and private selves. It begins pretty much at the beginning of Elvis’ superstardom: Quizzed by an unseen interviewer, he frankly and cheerfully explains the jittery physicality of his performance style: “I can’t stand still. I’ve tried it, I can’t do it.” In one early clip he’s asked, via a filmed phone call, if he’s apologized for the way his onstage gyrations have scandalized the public. His answer has a bruised frankness: “I haven’t. Because I don’t think I’ve done anything wrong.” The answer cuts to the heart of everything that was scandalous about Elvis, which has less to do with his thrilling hyp-no-shake than with his adamance that we must all be allowed to acknowledge ourselves as joyous, sexual beings. In the 1950s, that was a radical idea for any performer.