I had mixed feelings about the Swedish film, I thought it caught the atmosphere of the book perfectly, and I was surprised at how uncompromising it was in showing the sexual sadism stuff, but I felt it glossed over too much of the story. It was like they'd taken a detective story with Blomqvist as the viewpoint character and turned it into an action-suspense thriller with Salander as the viewpoint character. The plot, which in the book leads you inevitably to it's conclusions and explains them in depth, is hamfistedly resolved in 10 minutes, which I'm sure if you haven't read the book must be really confusing.
For me the detective story, the hacking elements and the conspiracy unravelling were what made the story good in the first place, were glossed over for the sake of momentum. I'd say that the film is most definitely The Girl with the Dragon Tattoo, and NOT Men Who Hate Women.