How many movies have Carlos Bustamante and Georg Lehner collaborated on?

They have worked on 1 movie together! Their first movie together was Zum Begriff des 'kritischen Kommunismus' bei Antonio Labriola (1843-1904) (1970) and was their highest rated movie together. They have not worked together since Zum Begriff des 'kritischen Kommunismus' bei Antonio Labriola (1843-1904) (1970).