How many movies have Igor Oistrach and Ivan Kotrč collaborated on?

They have worked on 1 movie together! Their first movie together was J. S. Bach: Koncert d moll pro dvoje housle a smyčce (1975) and was their highest rated movie together. They have not worked together since J. S. Bach: Koncert d moll pro dvoje housle a smyčce (1975).