Day of the triffods was in the 70's as well i think. Another classic.
1950s for the dreadful Howard Keel film, early Eighties for the John Duttine TV series. Cracking book though.
So many classics from the seventies. Close Encounters, Star Wars, Silent Running. Silent Running, as aforementioned, is a brilliant film bit also very interesting. As we know, the sets for the living quarters, control room, and giant storage hold were filmed on the decommissioned USS Valley Forge, which was scrapped shortly after the film. Also of interest is Douglas Trumbull, who had worked on the visual effects for 2001 and used his experience to film the spaceship and planet scenes for the film
Then there was Dark Star. Not my cup of dried leaves in hot water, but a classic nevertheless.
The Man Who Fell To Earth. Weird.
Westworld. Brilliant, an early predictor of the computer virus.
Alien. Stunning sci fi horror that defined a sub genre.
A Clockwork Orange, set in alternative near future. Marmite, though I love it myself.
THX1138, Future world, Solaris, The Black Hole, Star Trek, The Andromeda Strain...
Capricorn One, which started the mania for Apollo conspiracy theories.
And my favourite Charlton Heston fillum of all time, the Omega Man. The last normal bloke left alive in a world of zombie like creatures, and he is masterful at portraying a tortured soul driven to near madness by loneliness and danger.
What a decade.