Less than 24 hours after unveiling exclusive Wicked footage in Las Vegas, filmmaker Jon M. Chu found his way into the spotlight of another CinemaCon stage inside Caesars Palace, this time for a special luncheon in his honor at which he revealed secrets about filming the two-part epic musical.

“It was pretty magical last night,” Chu told The Hollywood Reporter’s co-editor-in-chief Nekesa Mumbi Moody, who moderated a fireside chat with the filmmaker after he was presented a trophy for cultural impact in filmmaking (by his In the Heights star Ariana Greenblatt). Chu has been in the editing room while managing a full household of four young children, so he said that being in Las Vegas where he could sleep and hang out with others, “I’m, like, ‘Let’s go.’”

Chu, fresh from the Colosseum stage where he appeared during Universal Pictures’ slate presentation, opened up on the 30-minute Wicked...