Silent Running (1972)

1h 29m · Directed by Douglas Trumbull

Starring Bruce Dern, Cliff Potts, Ron Rifkin, Jesse Vint, Mark Persons

After the entire flora goes extinct, ecologist Lowell maintains a greenhouse aboard a space station for the future with his android companions. However, he rebels after being ordered to destroy the greenhouse in favor of carrying cargo, a decision that puts him at odds with everyone but his mechanical companions.