How many movies have Gidon Kremer and Nikolaus Harnoncourt collaborated on?

They have worked on 2 movies together! Their first movie together was Mozart Violin Concertos 1-5 & Sinfonia Concertante in E Flat (1983) and was their highest rated movie together. They have not worked together since Mozart: Violin Concertos Nos. 4 & 5 (1987).