I am a product manager, but what that really means is that I produce software. Just like a producer in the entertainment business, my job is to understand what the consumer is going to buy, make sure that it gets built, and ensure it is done for a profit.
The producer vs director analogy is powerful. In the entertainment business, a producer owns the business while the director owns the art. The strategic product manager is a business leader while the team lead in development focuses on the art of the product--the innovation. Whether you call it a product manager, a product marketing manager, a product owner, or any number of other titles, the one who knows the market and defines the business is the product producer. It's a strategic role.
What's your role in creating great products? Are you the producer or the director... or the janitor?