[[caption-width-right:300:Running Silent in my sleep]]

''Silent Running'' is an [[GreenAesop environmentally-themed]] [[ScienceFictionFilms Science Fiction Movie]] from 1972 directed by Douglas Trumbull and starring Creator/BruceDern.

In the future, the environment of Earth has been destroyed, with the only plant and animal life left being preserved in domed forests aboard American Airlines space freighters in orbit around Saturn. Freeman Lowell, a botanist onboard the freighter ''Valley Forge'' and apparently humanity's last environmentalist, tends to the forests religiously and hopes that they can one day be returned to Earth and used to restore it to its natural state. When the decision to reassign the freighters and destroy the domes is made, Freeman becomes obsessed with protecting them. He kills his crewmates and escapes with the last dome, assisted by three robot drones he names [[ComicBook/DisneyDucksComicUniverse Huey, Dewey, and Louie]]. He must then escape discovery and survive a collision with Saturn's rings.

A well-known favourite of BBC film critic Creator/MarkKermode, who [[http://www.youtube.com/watch?v=dUsV5LP30rU thinks it's a better movie]] than ''Film/TwoThousandOneASpaceOdyssey''.

Not to be confused with the ''Mike And The Mechanics'' song of the same name, nor the trope SilentRunningMode.

!!This film provides examples of:
* ArtisticLicenseBiology: Put simply, humanity cannot survive without the environment. The scenario of the film is blatantly impossible; if we wiped out the entire environment, we'd go with it.
** On the other hand, some of Lowell's statements do seem to subtly suggest that humanity really is on its way out with the loss of the ecosystem (see the YMMV page).
* AssholeVictim: While no less dramatic (and showcasing the point where Freeman starts to lose it), every scene showing the rest of the crew of the ''Valley Forge'' up until he murders them showcases said crew as a bunch of industrial-strength {{Jerkass}}es who sincerely don't seem to give a crap about the fact that they are blowing up ''[[KickTheDog the last vegetable life of Earth, and multiple animals]]'' (they even ''rejoice'', because that means that they will finally be leaving their post).
* AwardBaitSong: "Silent Running" and "Rejoice in the Sun", both performed by Music/JoanBaez.
* BittersweetEnding: [[spoiler:Lowell dies, and the last dome is lost in space. Though the last drone is tending to it, and the forest within is alive.]]
* ChromosomeCasting: There aren't ANY women in this film.
* CuteMachines: Huey, Dewey, and Louie.
** Which ironically were played by double amputees.
* CrapSaccharineWorld: What little is told of Earth paints it this way: sure, there is no longer such a thing as work shortages... but there is the fact that ''humanity has killed all of the plant ecology on the planet''...
* DramaPreservingHandicap: The leg injury that Lowell gets during his rebellion eventually worsens and leaves him delirious (and having to seek SelfSurgery) and even after getting it fixed he is forced to hobble around and hold onto any supporting structures within grasp for the rest of the film.
* DrivenToSuicide: [[spoiler:In order to save Earth's last remaining plant samples, Lowell is forced to jettison the one remaining dome and destroy the ''Valley Forge'' before the ''Berkshire'' arrives, killing himself in the process.]]
* ExplosionsInSpace: A relatively accurate depiction -- nuclear explosions in space are just silent circular flashes that fade away.
* FutureFoodIsArtificial: And unfortunately, Lowell seems to be the only one who is being bothered by that (the other members of the crew of the ''Valley Forge'' either openly dislike the hand-grown food or just see it as a toy to play with in food fights).
* GreenAesop: Somewhat {{Anvilicious}}; but (especially at the time the film was made) SomeAnvilsNeedToBeDropped.
* IdiotBall: Lowell has been taking care of the plants for years, then near the end of the film when he's on the wrong side of Saturn, comes to suddenly realize the reason they're dying is they need sunlight.
** Although, in a bit of FridgeLogic, this could be seen as sign of his [[SanitySlippage mental deterioration]] due to isolation and guilt.
** Yet [[ArtisticLicensePhysics somehow]] the plants managed to get enough sunlight on the ''near'' side of Saturn...
* LatexSpaceSuit
* MeaningfulName: ''Freeman'' Lowell.
* MinimalistCast: Not counting the drones, there are exactly four on-screen characters in this film: Lowell, Barker, Wolf and Keenan, plus the [[TheVoice heard-but-never-seen]] captain of the ''Berkshire''.
* MohsScaleOfScienceFictionHardness: For the most part, falls under Mohs/OneBigLie--or rather, One Small Fib. The softest part of the movie is the unremarked-upon ArtificialGravity.
* NoOneGetsLeftBehind: A rescue mission is launched from Earth, on the grounds that they couldn't leave Lowell stranded out there. Ironically Lowell doesn't want to be rescued.
* ProductPlacement: American Airlines will last for centuries apparently.
* RiddleForTheAges: Why were the forests ordered to be destroyed? The President himself was not given the reason, or so he says on his transmission sending the orders.
** Most likely, it had simply become too expensive to maintain them any longer.
* SanitySlippage: Lowell gets more crazy as the film goes on.
* SelfSurgery: When the pain of the leg injury he got during his rebellion gets to the point where he's passing out and is delirious, Freeman reprograms the drones (after [[ReadTheFreakingManual Reading The Freaking Manual]] on how to do so) so they can work on his leg.
* SpaceIsNoisy: Another of the small fibs of the "hardness" of the story's science. Still works in the sense that the scene where the domes are detonated one by one and Lowell snaps and decides to save the last one is full of standing-in DramaticThunder.
* TerraDeforming: The government policy that leads to the events of the film.
* ThemeNaming: The freighters are all named after national parks - ''Valley Forge'', ''Berkshire'', and ''Sequoia''.
* TitleThemeTune: Performed by Music/JoanBaez.