I had no clue what that Wicked trailer was about, and probably half the commercials I saw in the Super Bowl.
Like the one with Jennifer Lopez, Ben Affleck, and Tom Brady. No clue. Or Christopher Walken? Car commercial?
I remember once there was a computer commercial, that I was clueless about. The next day, it was revealed that no one in the country had a clue what it was about.
The premise of Wicked is role-reversal. Everything we know about the characters from The Wizard of the of Oz is wrong.
In Wicked, the green witch was really the good one and the white witch was the bad one (conspiring with the wizard to subjugate the people).
Everything comes to a head and the fallout is the characters that we know from the 1939 movie.
Apparently, it was the book's author's shtick to write prequels to famous stories depicting characters in "before" situations that were opposite to what we believed.
-PJ