The Coen brothers do not make films.
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 . Inside Llewyn Davis [ ˈluː.ɪn deɪvɪs ] is a 2013 American black comedy drama film written , directed , produced , and edited by Joel and Ethan Coen .