Silent Running is a 1972 environmentally-themed American science fiction film starring Bruce Dern, featuring Cliff Potts, Ron Rifkin and Jesse Vint. It was directed by Douglas Trumbull, who had previously worked as a special effects supervisor on science fiction films, including 2001: A Space Odyssey and The Andromeda Strain. In the future all plant life on Earth has become extinct. A few specimens have been preserved in enormous, greenhouse-like geodesic domes attached to a fleet of American Airlines space freighters, currently just outside the orbit of Saturn. Freeman Lowell (Bruce Dern), one of four crewmen aboard the Valley Forge, is the resident botanist and ecologist who carefully preserves a variety of plants for their eventual return to Earth and the reforestation of the planet.