In one of his most popular movies, Elvis Presley shared the screen with Ann-Margret in Sin City , aka Las Vegas , easily creating the most electrifying teaming Elvis had on-screen. He’s Lucky Jackson, a Grand Prix race driver working at a casino to raise cash for a new engine; she’s a hotel swimming instructor - and the romantic action revs up from their first meeting. Veteran director George Sidney, who guided Ann-Margret in the prior year’s Bye Bye Birdie, combines the hormonal heat wave with fascinating sights of ’60s Las Vegas . Songs include the high-roller title track, the stars’ duet on “The Lady Loves Me,” her sultry “Appreciation” and The King’s version of Ray Charles’ “What’d I Say.”