Silent Running - 1972 - 6/10
SciFi fantasy in 1972, predicts all green life will be extinct on Earth.
Perhaps less far fetched nowadays.
Vast spaceships, greenhouses, nurture the last fauna maintained by small robots and humans of sundry dedication.
Underlying themes of homesickness and isolation contest with the mission zeal.
Bruce Dern very good in this, although he is already wacko stereotyped which undercuts the story.
State of the art effects by Trumbull have not dated much.