Warning: This article contains spoilers for the stage musical “Wicked” and the movie “Wicked: For Good.”

Like its predecessor, “Wicked: For Good” more than doubles the runtime of Act II of the Broadway musical that inspired it. But unlike the first “Wicked” film, the sequel makes big additions to the storyline.

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In addition to two brand new songs, “Wicked: For Good” adds a wedding, changes the composition of a pivotal song and makes a new casting connection to “The Wizard of Oz.”

Winnie Holzman, who wrote the book for “Wicked” and co-wrote “Wicked: For Good” with Dana Fox, says “we always knew we weren’t going to just plunk (Act II) into a movie script.”

“We wanted to make sure that it wasn’t Act II, that it was a

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