The Fourth World is a 2011 English-language Documentary Adventure film directed by Mark Volkers. One out of every six human beings lives in a very hidden world--the world of slums. Filmed on five continents, 'The Fourth World' takes viewers deep inside this hidden world, a world the United Nations says could triple in the next 30 years. Getting past the statistics is tough. 'One Billion' is a figure we cannot wrap our minds around. This compelling film introduces viewers to the individuals who make up this statistic. It soon becomes apparent that these people are no different than anyone else. In fact, it could be argued that anyone who can survive slum life could make it anywhere. 'The Fourth World' may just change your perspective on slum life, and the chronically poor of the Developing World. The Fourth World: Hear Their Stories. Written by Anonymous. The fourth world stars Mark Volkers in the lead role. It was released on 1st August 2012.