I saw it last night, and...
wow that was good. My heart was actually racing when it ended. It was really gripping, it's like there was no falling action after the climix... from the time she went to the club to the end the viewer had absolutely no time to relax. I don't know how anyone can call it dull, unless they watch really screwed up movies on a daily basis or something. Oh, and the plot synopsis totally doesn't do the film justice.
Man that was such a fantastic movie...