In “Wicked,” Elphaba and Glinda travel from Shiz University to the Emerald City on a glistening green train to meet the wizard.

"Wicked," the much-anticipated movie musical starring Cynthia Erivo and Ariana Grande, arrives in theaters Friday. Here's what to know.

Ariana Grande and Cynthia Erivo say they made "a clear choice" to befriend each other when they were cast in Wicked — something not all stars do on film sets. Their offscreen chemistry is something co-star Jeff Goldblum says is "rare and uncommon."