- Country: USA
- Genres: Documentary
- Runtime: min
- AKA: Grass, the Epic of a Lost Tribe (United States of America) , Трава: Битва народа за выживание , Náufragos da Vida (Brazil) , Gras (Germany) , Hierba (Spain) , Det glemte folk (Denmark) , Grass (United States of America) , Grass: A Nation's Battle for Life (United States of America) , Grass: A Nation's Battle for Life , L'exode (France, French Republic)
A silent documentary which follows a branch of the Bakhtiari tribe of Persia as they and their herds make their seasonal journey to better pastures.