How many movies have Joel Coen and Michael Rosner collaborated on?

They have worked on 1 movie together! Their first movie together was Inside Llewyn Davis (2013) and was their highest rated movie together. They have not worked together since Inside Llewyn Davis (2013).

Inside Llewyn Davis (2013)

Crew
Director
Role
Arlen Gamble
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Producer
Crew
Writer
Crew
Editor