Question: what have the coen brothers done?
Answer: No Country For Old Men (2007)
The Big Lebowski (1998) ... 
Blood Simple (1984) ... 
The Man Who Wasn't There (2001) ... 
Fargo (1996) ... 
Miller's Crossing (1990) ... 
A Serious Man (2009) ... 
Inside Llewyn Davis (2013) ...