Coen brothers directed and written films of different genres.
A Serious Man is a 2009 black comedy-drama film written , produced , edited and directed by Joel and Ethan Coen . Coen brothers . The brothers 's films No Country for Old Men , A Serious Man and Inside Llewyn Davis have been ranked in the BBC 's 2016 poll of the greatest motion pictures since 2000 . No Country for Old Men is a 2007 American neo-western neo-noir thriller film written and directed by Joel and Ethan Coen , based on Cormac McCarthy 's novel of the same name .