If you like "Trainspotting", you'll love this one. "Filth" is also an adaptation of Irvine Welsh's novel and, although the stories do not have much in common, the movies share a specific atmosphere that will pin you to the screen. Its name fits perfectly, because the film is uncompromisingly dirty. James McAvoy plays a corrupt police detective who would stop at nothing to get his promotion. But behind the mask of a self-confident macho chauvinist, there are hidden secrets that the movie gradually unfolds, up to the totally wicked twist at the end. Although McAvoy's character is almost utterly bad guy, his rude and ruthless charm will mesmerize you and make you be on his side all the time, even when his behavior is inexcusably brutal. In addition to his undoubted acting talent, Mcavoy dedicated himself to the credibility of his performance, so he drank lots of whiskey in order to make his role of heavy alcoholic and drug addict more convincing. His transformations throughout the film, and the powerful expressions of psychological states and emotions of his character definitely deserve an Oscar. Although the film is full of insane moments, surreal scenes and filthy humor, "Filth" is primarily a powerful and shocking drama about a man who is falling apart inside, but whose life thought him that he must not show it. The film brings this phenomenon to surreal extremes, but essentially it is something with which many of us can identify, and I think that's precisely what makes McAvoy's character rather antihero than a villain, and what makes us sympathize with him.
8/10
I would just like to mention the remarkable performance of Jim Broadbent, whose surrealistic scenes make this film even more bizarre, and if you pay attention, you may notice tributes to Stanley Kubrick's cult films "A Clockwork Orange" and "Odyssey".
