This review may contain spoilers. I can handle the truth.
The Coens always crossed a fine line between comedy, drama, and horror, often as the main focus or a minor aside detour. Yet, "Barton Fink" may be the closest they've gotten to balancing all three without falling into the stumbling blocks them.
A tale of a man suffering writers block is probably the best possible area to incorporate these respective genres, since, speaking as someone who suffers it quite frequently, it's often funny, sad, and terrifying.
Ultimately (this is a…