Greatest film about hipsterism?

Honestly, Harvey Keitel acts like he just walked out of the "White Negro". You could find Jimmy Fingers in Williamsburg today, right down to the ascot and boombox... but they'd do it as an ironic affectation. Jimmy is the real deal, or as a real as it gets: the American Existentialist, absorbed in his own hypothesis, trying to refashion himself by his own infantile fantasies, searching for meaning in the vitality of sex and the danger/freedom of black culture, but discovering the only way of possibly getting there is to learn to live with death, violence and his own inner psychopathy.

Toback could probably make a great adaptation of "An American Dream" if he was so inclined.