Best science fiction movie?

Answered this Yahoo Question today...

Best science fiction movie?

i'm watching tv-movie "supernova" while typing this and im afraid it's just a complete insult to my own intelligence ... can anyone recommend a really good science fiction movie to make up for this friggin' atrocity?

If I was subjected to torture (being strapped into a chair and forced to watch an endless loop of Barney reruns, for example) and forced to select One Film above All Others as The Best SF film ever made...

I'd have to say Blade Runner. It has the timeless quality of a real classic film, and it is very nearly flawlessly SF.

Since I'm not being subjected to torture, I'll offer some further thoughts on the subject of "Great" SF films.

The last great SF film was "Wall E", that I've seen. Yes it's a kids film, go see it anyway.

The Essential SF list runs like this

Metropolis
Forbidden Planet
A Clockwork Orange
Blade Runner
Alien
Serenity
Vanilla Sky
The Abyss
The Terminator
Aliens
Pitch Black
A.I. Artificial Intelligence
Children of Men
The Truman Show
Eternal Sunshine Of The Spotless Mind

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