Major spoilers for the entire story of "Wicked" — yes, the entire Broadway musical — lie ahead, so proceed down the yellow brick road with utmost caution!

Throughout "Wicked: Part One" — Jon M. Chu's delightful adaptation of Stephen Schwartz and Winnie Holzman's acclaimed (and wildly successful) Broadway musical "Wicked" — we meet a fair number of characters whose stories will take some intense twists and turns in the movie's second half "Wicked: For Good." The most obvious, of course, is Elphaba Thropp (Cynthia Erivo), a green-skinned and ambitious young sorceress who ends up enrolled at Shiz University and will eventually become the Wicked Witch of the West; right by her side is Galinda Upland (Ariana Grande-Butera), a peppy and pink-clad student who may or may not have legitimate magical abilities and who goes on to become Glinda the Good Witch. What you may not realize, though, is that we've also already...