Hempsters: Plant the Seed

The film follows the lively exploits of activists for (and against) the movement for the legalization of the hemp plant in America. It features Woody Harrelson, Merle Haggard, Willie Nelson, and a whole host of farmers, politicians, businessmen, and laypeople as they search for the truth about this mysterious and demonized plant.
http://www.hempstersthemovie.com/