Oscar winner Jessica Chastain talks "A Doll's House," Kevin Cahoon of "Shucked," "Bob Fosse's Dancin'" breakout Koltom Krouse and longtime "Harry Potter and the Cursed Child" usher Chin Ho Fung. Plus, go inside the opening nights of "Fat Ham" and "Camelot" and celebrate the final performance of Broadway's longest-running musical "The Phantom of the Opera."