Hollywood’s summer just delivered a financial triple threat: a record-shattering superhero opening, a streaming blockbuster debut, and a Tony-winning Broadway musical still wrestling with profitability. The box office, living rooms, and the Great White Way are all sending the same message—audiences will pay for conviction, whether that’s a $932 million web-slinger, a 15.2-million-view fashion sequel, or a musical that’s boosting ticket sales but not yet its bank account. The...