#3 Barton Fink
Right after Miller's Crossing - and actually written while struggling from writer's block while trying to finish the script for Miller's Crossing - the Coen brothers got to work on Barton Fink, reuniting with John Turturro, who had an important supporting role in the last film. Turturro plays the eponymous Fink, a playwright brought in from New York to write Hollywood scripts. But he suffers from writer's block - how coincidental - and from there ... well, you've got to watch for yourself. The film works on so many layers, from its take on Hollywood and its differences from Broadway, to the self-called "intellectual" and his struggle to relate to the working man. Turturro is wonderful, John Goodman's supporting performance is simply fantastic, and the disgusting hotel in which much of the film takes place feels like its own character. It's also very funny, if you have the dark, twisted sense of humor that the Coens so clearly possess.