Olivier Assayas's 'Clean' takes an in depth look at the life of a young widow who tire to get her life back on track after her former life, that of sex, drugs and rock and roll ended in the death of her husband and a six-month prison sentence. The movie isn't as much about drugs as it is about the struggle of a woman to stay clean and turn her life around in order to prepare herself to be a better mother. The story is told with a lot of subtle dark undertones but it is told with sincerity and there is no pretension about it. Assayas really avoids clichés and his main intention really seems to be to tell a genuine human story. Maggie Cheung delivers a breathtaking performance as the desperate Emily Wang. This is perhaps her final film before she's moved into retirement (though I hope she does come back and do more films because it would be a waste of her talent). Her performance is subtle but it speaks volumes. Likewise, Nick Nolte does an equally amazing job as Emily's sympathetic and strong-minded father-in-law. It is easily one of his best performances. The supporting cast does well too. Beatrice Dalle especially stands out as Emily's friend. In addition, the soundtrack is pretty mesmerizing and it wonderfully adds to the film giving voice to the silent moments. 'Clean' is relevant film especially for those who have survived addiction and still struggle with it every day but that is not to say that it's another one of those preachy this-is-what-you-should-do movies. It has a universal appeal and if Maggie Cheung has chosen this as her last film then it's a fine choice (but of course I hope that she does come back to do more).