As there are other excellent reviews of this film already on Amazon, I'll just add a few comments.
First, this is a classic Science Fiction film, with ideas a-plenty and enough of a changing story to keep you on your toes. OK, so there isn't a spaceship in sight, or aliens, but instead what we have is a nicely-plotted story with excellent performances from the two leads. Maybe, to be a bit critical, the story drags in the middle, but then things happen (I'll say no more) and off we go again - with some excellent make-up/special effects (understated but very nicely done and convincing as well). A bit cruel to Raoul, though.
Second, I think it would be most unlikely that a Hollywood remake would have the charm of this - maybe an independent film maker could have a go instead, and would probably (hopefully) give it the heart a corporate film company might lack. Maybe I've seen too many disappointing Hollywood films, especially remakes (War Of The Worlds, The Day The Earth Stood Still, etc), and am suitably cynical, but once you can get used to watching a film with subtitles the story just carries you along. Maybe you need to watch it a couple of times (or more) to get all the nuances, but it's not a chore, it's a pleasure. So, hands off Hollywood, don't do a Ring on this film. Stick to teenage chase/sex comedies with little plot/intelligence and lots of car chases and explosions, and we'll all be happy knowing exactly what we're going to get - and thus what to avoid!
Anyway, rant over. Cyborg She is a welcome addition to the list of quality time-travel films.