The plot is twisting, twisting and twisting again, while characters that seem to be one thing are revealed to be another, interacting in all kinds of ways. However, in order for a story to be successful, the plot needs to be interesting and the characters well defined before you do the plot twisting. Bottom line: a lot atwist about nothing. Now there's some Shakespeare for you.
Yet somehow things are getting worse and worse: known actors have puny or plain bad roles, the acting is mediocre at best, the editing of the scenes, vague and not linear in time, confuses the hell out of the viewer. The girls: Julia Stiles, Malin Akerman, Alice Eve - they do the best with their roles, in fact they are the best actors in this film, far outclassing old farts like Pacino and Hopkins, who's only purpose in life nowadays is to give megalomaniacal speeches.
A special mention for Alice Eve. She did a weird kind of interpretation which was awesome. I don't know if it was her idea or the director's, but her character gave me the creeps. It just wasn't completely right for this movie.
Conclusion: a waste of time and talent. A confusing story that feels like someone's ego trip, a boring film, a pointless story.