Jon M. Chu Breaks Down Cynthia Erivo and Ariana Grande's For Good Scene

This story contains major spoilers for “ Wicked: For Good .”

Jon M. Chu isn’t shy about it — the second half of his two-film adaptation is the one where he tears down walls. Literally.

One of the film’s most talked-about sequences — the split-door staging of “For Good” — wasn’t scripted and almost didn’t exist.

Chu says he found the emotional shape of the moment months before cameras rolled. During an early rehearsal, Cynthia Erivo and Ariana Grande began improvising a goodbye — speaking, not singing — with their arms wrapped around each other in a corner of the room. When they placed their hands against an imaginary door, Chu says he “started to weep.”

“It was in rehearsals that we found it,” Chu reveals. “Cynthia grabs her and says, ‘Come here.’ And I’m like, where are they go