A new documentary airs tonight on CNBC about one of the riskiest bets out there. It's not a stock, or a bond, or a startup company. It's the business of theater on Broadway.

"Spider-Man: Turn Off The Dark" was the laughing stock of Broadway. Until it wasn't.

"Death of a Salesman" is back on Broadway, this time starring Phillip Seymour Hoffman. Director Mike Nichols talks about the iconic play's economic resonance today.

Once mocked by critics and racked by delays, Spider-Man: Turn Off the Dark has set a record for Broadway ticket sales.