FX series inspired by a Coen brothers film (5)
I believe the answer is:
fargo
'fx series inspired by a coen brothers film' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for fargo that I've seen before include "He and Wells founded US stagecoach company" , "Partner of Wells in US transport company" , "Wells --, stagecoach service" .)