In the sequel to last year’s musical "Wicked," Glinda the Good Witch finally gets her bubble — you know, the one she floats around in. Alas, it's mechanical, not magical. One irony of this topsy-turvy take on "The Wizard of Oz" is that Glinda, played by the perky pop star Ariana Grande, has no real powers — a point the conniving Madame Morrible (Michelle Yeoh) likes to drive home. Glinda also gets a wand made of fake crystal.

"The wand really sells it," says Morrible, although as the Ozians might say: She doesn’t sound too convincified.

There is indeed a lack of magic in "Wicked: For Good," which brings Universal’s two-part adaptation of the smash Broadway musical to an end. Part One was a sumptuous, sparkling, nearly three-hour indulgence led by a soulful Cynthia Erivo as Elphaba,

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