Why Big Musicals Have Become Big Business

"On the heels of its most lucrative season yet, with a record-setting $1.37b in ticket sales, Broadway has experienced something of a rebirth. From the success of La La Land on the big screen to Hamilton onstage, there's a collective renewed interest in theater that's been reflected in a wave of movie-musicals and televised live-concert experiences. All of this seems, to entertainment industry insiders, like the chorus following a crescendo." How has this happened? Disney and Glee.