I'm a housewife <a href="http://www.uurhai.mn/news/view/4479">cheap medication</a>  Documentaries have a storied past of changing the conversation on cultural, political and social issues. "There's a long tradition of this and there's a forward-looking tradition of this," says Alice Elliott, an Oscar-nominated documentary filmmaker and professor at New York University. She cites the documentaries like "Bag It," about the environmental effects of plastic bags, "Scouts' Honor" about the Boy Scouts policy towards homosexuality, and "The Invisible War," about rape in the military, as being just a few of many that have influenced movements.