In the rehearsal process, the creative team deeply analyzed each character, localizing the narrative while preserving Williamson's essential social critique.

The ensemble cast portrays a range of vividly drawn figures. Du, playing Colin, describes his role as "a man caught between ambition and conscience. Showing his hesitation and inner conflict is key to connecting with the audience".

Sun, who plays the intellectual Kate, said: "My character faces setbacks and successes, and I had to portray her growth subtly — strong, yet not ostentatious."

Song, portraying the ambitious Mike, said: "I want audiences to see the choices he makes and the consequences he faces, leaving room for them to reflect on ambition and morality."

Bai, as Elaine, found resonance in her character's struggles balancing career and personal life: "It's something many women experience; I instantly connected with her."

The stage design reinforces the story's thematic richness. Drawing on the play's title, inspired by the Emerald City from The Wizard of Oz, the production builds a city that appears dazzling yet fragile, an "illusion of grandeur".

Tang noted: "We created an air castle with exposed wooden frames, visible equipment and live stage lighting. It's luxurious but raw, reflecting the duality of the film industry and the city of ambition."