The respective casting of those roles — Ariana Grande as the minimally gifted sorcery student who will go on to become Glinda, Good Witch of the North, and Cynthia Erivo as Elphaba, future Wicked Witch of the West — is the movie’s winning hand.

"Wicked" stars Cynthia Erivo and Ariana Grande as Elphaba and Glinda in Jon M. Chu's adaptation of the iconic stage musical. The film is a net win.

Cynthia Erivo and Ariana Grande play Elphaba and Glinda in "Wicked." Credit: Universal Pictures While the performances in the film are sensational overall, Chu makes a series of downright confounding choices that undercut the rapturous flow of the Broadway production and even the perspective of the story he aims to exalt.