The truth is that non-fiction film is the hot item so far this year. Year by year, documentaries have become more visible, discussed and more attractive to buyers. Coming into this year’s festival, much of the business buzz has been about documentaries. Before the Festival had even kicked off, Zeitgeist Films [www.zeitgeistfilms] had picked up Yung Chang’s political travelogue, UP THE YANGTZE [uptheyangtze.com], in which a poor Chinese girl is hired to work on a luxury cruise with the famed and controversial Three Gorges Dam in the background. Zeitgeist co-president Nancy Gerstman emphasizes the film’s “compassion and dark humor” as among its selling – and in their case buying – points.