The Social Change Film Festival & Institute’s Water Symposium It’s a rare and special occasion, when creative people with innovative ideas about how to better the world get a chance to converge, share ideas, and inspire each other in a grand beautiful setting. And that is just what took place a few weeks ago at the Social Change Film Festival & Institute’s Water Symposium, in the Silicon Valley town of Los Altos Hills, when filmmakers, activists, social entrepreneurs, philanthropists, students and concerned citizens, gathered on the grounds of the historic Stonebrook Court estate.