Wizard

Note: Major spoilers ahead for “Wicked” and minor spoilers for “Wicked: For Good.”Last year’s musical blockbuster “Wicked” was clearly presented as a prequel to “The Wizard of Oz,” but its sequel, “Wicked: For Good,” overlaps heavily with Dorothy’s adventures in Munchkinland and the Emerald City.The 1939 film starring Judy Garland…