you can't argue with the inclusion of any of the movies on the list
Well I can.
A Clockwork Orange More obligatory Kubrick overkill. Is this strictly science fiction because it was set in the future? (Can't argue with 2001)
The Boys From Brazil Huh? Amusing, I suppose, but in the top 20? Or 50?
Tron I assume this is just nostalgia from GenXer's, but it's abysmally acted and, though imaginitive, wears out it's welcome long, long before it's over. A fun bad movie that's not all that fun.
Soylent Green Strictly grade "C" sci-fi, insufficient budget, Edward G. Robinson in his last performance its only real asset.
Planet Of The Apes Just because the remake was so bad does not necessarily mean that the original was all that good. Rather dated; loved it when it came out, and I wish I still could. No special effects at all, too.
Akira Everyone assures that this is not the be all and end all of Animee. I've only seen this one and Princess Mononoke (or however it's spelled), but I really don't see what the fuss is about.
Barbarella It was dumb cheese in the sixties, and though I haven't seen it in a while, it seems unlikely that age could have dimmed its luster. Plus Roger Vadim couldn't direct his way our of a warm paper baguette.
The Day The Earth Stood Still third from last?? (At least it beat out the above two.) No Forbidden Planet? How about War of the Worlds, or the 1956 Invasion of the Body Snatchers? How about Metropolis (not the cartoon) or Things to Come? Or the first version of The Thing (maybe even the second)? Quatermass and the Pit (also known as Five Million Years to Earth)? George Pal's The Time Machine?
Who came up with this list?