Dirt! The Movie, "a story with heart and soil" is the brainchild of Bill Benenson and Gene Rosow which focuses on the idea that soil can bring us all together.
With narration by American actress Jamie Lee Curtis (True Lies), the documentary brings to life the, economic, political, environmental and social impact that the soil has. It shares the stories of experts from all over the world who study and are able to harness the beauty and power of a respectful and mutually beneficial relationship with soil.
This is a unique documentary and I doubt you will have seen anything quite like it (I certainly haven't). Visit the filmmaker's blog at dirtthemovie.org which contains further information surrounding the documentary (though it doesn't look like it has been updated in a while).