How many movies have Christopher Guest and Michael McKean acted in together?

They have worked on 12 movies together! Their first movie together was Likely Stories Vol. 1 (1981) while their highest rated movie together was Unwigged & Unplugged: An Evening with Christopher Guest, Michael McKean and Harry Shearer (2009). They have not worked together since Unwigged & Unplugged: An Evening with Christopher Guest, Michael McKean and Harry Shearer (2009). They are most known for their comedy films together.