Considering the very low budget, or even the so-so acting at the start (which improves as the storyline becomes more clear), all the movie's power comes from the storyline and it's concept.

What _would_ happen if all of us could be brought back as clones of ourselves - and in the next 40 years, we may just happen to find out.

And that's what science fiction does at it's best - examine the real-life future consequences of technology that is only just possible today. That doesn't mean they get it right, but it's nice to see ideas fleshed out.

Don't expect any flashy or up-to-date special effects, and you won't be disappointed.