Ten percent of Americans believe that Elvis Presley is still alive, notes filmmaker Paul Stone in his irresistible portrait of Pete "Big Elvis" Vallee, a 960-pound Elvis impersonator who performs, the video notes, in Vegas casinos you’ve probably never heard of. Given all those people who prefer to think that Elvis is still with us, perhaps it’s not all that surprising to learn that Vallee believes he is the love child of The King.