Hempsters: Plant the Seed (2010) 2010, Documentary, United States Hempsters: Plant the Seed (2010) Duration: 1H30M Description: 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, politician….. Trailer ↗ United States 2010 Documentary