His job was to keep the sets clean. Tonight, that meant —the abandoned Starlight Stables production, a 90s classic about a singing unicorn. A tumbleweed of synthetic hay drifted past his boots.

"Then why is the backlot full of ghosts?" Leo asked. "Why does everyone feel like they're sweeping a graveyard?"

Next, they visited the Friends Central Perk set, where they sipped coffee and chatted with friends (or rather, their cardboard cutouts). Lily's mom, a huge fan of the show, couldn't resist striking a pose on the iconic orange couch.

When the screen went dark, no one clapped. But 4,000 people wiped their eyes.