Art Directors, Production Designers In New York

For a film in New York with a lower budget, also known as an indie, Art Directors & Production Designers are interchangeable. In films, most of the time the Production Designer is the known as the head of the film's Art Department. They take what they get from the director of the film and utilize their creative abilities to capture what the director wants. The Art Director the name given to the Production Designer's second in command.

California Film Commission

Additional sources