An interesting Top 50 list discovered here. The idea is that you embolden the ones you have seen, so here goes:

1. Metropolis (1927)
2. A Clockwork Orange (1971)
3. Brazil (1985)
4. Wings of Desire (1987)
5. Blade Runner (1982)
6. Children of Men (2006)
7. The Matrix (1999)
8. Mad Max 2: The Road Warrior (1981)
9. Minority Report (2002)
10. Delicatessen (1991)
11. Sleeper (1973)
12. The Trial (1962)
13. Alphaville (1965)
14. Twelve Monkeys (1995)
15. Serenity (2005)
16. Pleasantville (1998)
17. Ghost in the Shell (1995)
18. Battle Royale (2000)
19. RoboCop (1987)
20. Akira (1988)
21. The City of Lost Children (1995)
22. Planet of the Apes (1968)
23. V for Vendetta (2005)
24. Metropolis (2001)
25. Gattaca (1997)
26. Fahrenheit 451 (1966)
27. On The Beach (1959)
28. Mad Max (1979)
29. Total Recall (1990)
30. Dark City (1998)
31. War Of the Worlds (1953)
32. District 13 (2004)
33. They Live (1988)
34. THX 1138 (1971)
35. Escape from New York (1981)
36. A Scanner Darkly (2006)
37. Silent Running (1972)
38. Artificial Intelligence: AI (2001)
39. Nineteen Eighty-Four (1984)
40. A Boy and His Dog (1975)
41. Soylent Green (1973)
42. I Robot (2004)
43. Logan’s Run (1976)
44. Strange Days (1995)
45. Idiocracy (2006)
46. Death Race 2000 (1975)
47. Rollerball (1975)
48. Starship Troopers (1997)
49. One Point O (2004)
50. Equilibrium (2002)

31/50