Once Upon a Rooftop (2010)
On a rooftop high above the bustling streets of Hong Kong, a woman practices the ancient art of tai chi as her daughter watches from the shadows. Invisible from below, they share their hidden promontory with 30 other families. All live in shanties perched precariously on top of a nine-story building. This film is a porthole to an intimate view of life in these illegal rooftop tenements that exist throughout Hong Kong.