“Xanadu” is a dazzling roller-skating journey packed with comedy, romance, and the magic of the 1980s. Based on the cult classic film that starred Olivia Newton-John and Gene Kelly, this musical adaptation lights up the stage with its story of Kira, a beautiful Greek muse who descends from Mount Olympus to Venice Beach with a mission to inspire struggling artist Sonny to create the ultimate artistic achievement—none other than the first roller disco. However, Kira’s plans take a comedic turn when she falls in love with the mortal Sonny, leading to turmoil courtesy of her envious sisters.