Hunger is a classic too. Rather bleak, but there is also Victoria - maybe too sentimental for P's tastes - i dont know; a beautiful writer.
Yes, Fargo is great ( Steve Buscemi - lol ) and Oh Brother too - not to mention Blood Simple.
But you know, i have never actually managed to finish watching Barton Fink. I know i
should like it, but ive tried about 3 times and give up after about 30 minutes.