Years ago the airline industry mopped up shop with the rail industry as rail companies failed to realize their business was transportation, not trains. Now, the same thing may be happening to the theatre industry. Mark Cuban asks, what business are theatres in?

As digital delivery becomes more prevalent, we'll see more and more independent films released directly to the public for their first run via services like iTunes. But major studios and theatres are loathe to see this happen. This is their cash cow, supposedly. But is it really? Within five years, I believe the entertainment industry (music, TV, and motion pictures included) will be turned on its head. And the companies that look to meet the desires of everyday people faster, instead of trying to hedge their profits with old-school business models, will rise to the top. Where do you think entertainment will go?