Travel back to Oz with official trailer for Jon M. Chu's 'Wicked: For Good' starring Cynthia Erivo and Ariana Grande

Both parts of Wicked were shot in the United Kingdom simultaneously. "A lot of movie two was shot before some of the stuff in movie one. We had big boards with what timeline we’d be in, and they had notes all over their script so we could all be in sync of where we’re at," he shared. "Things that you may have noticed in movie one, you’ll see why those things are there. It is designed to be seen big and felt deeply."

As Glinda’s stardom expands and she prepares to marry Prince Fiyero in a spectacular Ozian wedding, she is haunted by her separation from Elphaba. She attempts to broker a conciliation between Elphaba and The Wizard, but those efforts will fail, driving Elphaba and Glinda only further apart. The aftershocks will transform Boq and Fiyero forever, and threaten the safety of Elphaba’s sister, Nessarose, when a girl from Kansas comes crashing into all their lives.

As an angry mob rises against the Wicked Witch, Glinda and Elphaba will need to come together one final time. With their singular friendship now the fulcrum of their futures, they will need to truly see each other, with honesty and empathy, if they are to change themselves, and all of Oz, for good.

As for the two new songs featured in the epic and emotional conclusion, Chu commented, "They're great additions to this movie. They were necessary in this movie to help tell the story."

Wicked: For Good is based on the generation-defining musical stage play with music and lyrics by Stephen Schwartz and book by Winnie Holzman, from Gregory Maguire's novel. The screenplay is by Holzman and Holzman & Dana Fox. The score is by John Powell & Schwartz, with music and lyrics by Schwartz. 

Marc Platt and David Stone produce, while Schwartz, David Nicksay, Jared LeBoff, Holzman, and Fox serve as executive producers.

"I think the meat of what Wicked is all about happens in movie two. To me, this is why this story exists," he concluded. "This is where our childhood dreams collide with our adult selves."

Wicked: For Good flies into theaters on November 21.