I'd agree with you Adrian that if you never had the background from the other two, the third had very little to offer. The first is probably required reading/watching as it pushes some boundaries that really draws in the viewer to the Lisbeth character. The 2nd was good, but again really requires that initial introduction to carry it. The third is completely dependant on it and it has trouble coming into its own, even then.

I have not seen the American version yet.

With great power comes Awesome irresponsibility.