"I really think the mind of someone who hasn't been welded into place by their work or studios or actors or this whole society is a wonderful mind to work with, so I'd like to do a big picture with an unknown director"

This quote by Joan Severance speaks with the significance of working with an innovative mind that is not constrained by the expectations of the industry. She believes that somebody who is not bound by the rules of the market, such as a director who is not well-known, can bring a distinct perspective to a job. She is suggesting that working with somebody who is not currently established in the market can be useful, as they can bring a fresh and innovative approach to the task. This is a great suggestion that imagination and development can originate from anybody, despite their experience or background. It is necessary to acknowledge the capacity of those who are not currently established in the industry, as they can bring an unique and valuable point of view to any job.