> 8 decades
> 6 countries
> 4 sci-fi titles which intrigue you enough to watch
> 4 sci-fi posters which intrigue you enough to watch
> 3 Hugo Award winning or nominated sci-fi films
> 3 sci-fi films with less than 2,024 views on letterboxd
> 2 linked sci-fi films (same franchise, same director, etc.)

My list (I decided to focus on the Ex-Soviet Bloc):
8 Decades
1. Aelita (1920s)
2. Cosmic Journey (1930s)
3. Krakatit (1940s)
4. The Fabulous World of Jules Verne (1950s)
5. Encounter in Space (1960s) ✓
6. Pilot Pirx’s Inquest (1970s)
7. Kin-Dza-Dza (1980s)
8. Abdulladzhan, or Dedicated to Steven Spielberg (1990s)
6 Countries
9. Stalker (Soviet Union)
10. On the Silver Globe (Poland)
11. The End of August at the Hotel Ozone (Czechoslovakia)
12. Visitors from the Galaxy (Yugoslavia) ✓
13. Jupiter’s Moon (Hungary)
14. A Bomb was Stolen/S-a Furat o bomba (Romania)
4 Titles
15. Tomorrow I’ll Wake Up and Scald Myself with Tea
16. You are a Widow, Sir!
17. A Nice Plate of Spinach
18. Ga-Ga: Glory to the Heroes
4 Posters
19. O-Bi, O-Ba: The End of Civilization ✓
20. Ivan Vasilyevich Changes His Profession
21. The Apostate
22. Odysseus and the Stars
3 Hugo
23. A Scanner Darkly
24. Sorry to Bother You
25. Frequency
3 with less than 2024 views
26. Planet of Storms
27. The Secret of the Secret Weapon
28. Treasure Planet
2 linked (director, franchise, etc)
29. Hard to be a God (1989)
30. Hard to be a God (2013)