About a Boy is one of my all time favorite movies. I'm so glad I watched it again this weekend.
Hugh Grant plays a very clever guy who cherishes his lack of attachment to others. He finds himself reluctantly involved in the difficult life of a troubled boy, and as much as he resists participating in their problems, a true friendship grows between him and the boy, in a way that is incredibly heartwarming and heartbreaking without being cliche.
Toni Collette plays the boy's suicidal and clinically depressed mother, and this is treated with great compassion. At the same time About a Boy is enormously funny. The lines are fantastic and some of the awkward scenarios are just priceless.