What happens when you bring together a decent cast with a weak script? You end up with a luke-warm film like Whiteout.
The original graphic novel (I read it after seeing the film) is, unto itself, a decent, but not entirely note-worthy book which does make me wonder why they decided it was worth turning into a film.
The reality is that the film tries to make as much of what it got originally from the graphic novel, skipping some parts, but not really adding anything more to it. In the past, I've personally been critical of films based on graphic or regular novels that stray too much from the original story, but then there also the films like Bladerunner, Fightclub, Children of Men or The Bourne films which take what they need from the original story and then evolve into something completely unique and new which is also fantastic.
I think that they should have been braver with taking liberties in regards to the story.
If you want to see Kate Beckinsale in something decent, see Underworld. If you want a great heroine, see Hanna. If you want a good action/suspense film, see Ronin or The Bourne films.