Jetée

D'oh. I didn't even notice that you posted the IMDB link in there.

I thought that you had forgotten it, and that's why the link looked so messed up.
I'm glad, though, that my "shot-in-the-dark" guess actually proved to be quite accurate.

Here is the first one I found on youtube: (and as I watch it, I distinctly remember it now, just because of the twin cats' annoying but recognizable laugh)

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As human beings, our greatness lies not so much in being able to remake the world (that is the myth of the Atomic Age) as in being able to remake ourselves.

—Mohandas K. Gandhi