The Pluto Files - New Documentary 2016 When the American Museum of Natural History's Hayden Planetarium stopped calling Pluto a planet, director Neil .br br [BBC Space Documentary] The Pluto Files: New Science Documentary 2015 HD Pluto (minor-planet designation: 134340 Pluto) is the largest object in the .br br BBC Space Documentary: The Pluto Files - New Science Documentary 2015 HD [BBC Space Documentary] The Pluto Files: New Science Documentary 2015 .br br The Pluto Files - New Documentary 2015 When the American Museum of Natural History's Hayden Planetarium stopped calling Pluto a planet, director Neil .