How many movies have Gioacchino Rossini and Martin Bookspan collaborated on?

They have worked on 1 movie together! Their first movie together was Toscanini: The Television Concerts, Vol. 8: Franck, Sibelius, Debussy and Rossini (1952) and was their highest rated movie together. They have not worked together since Toscanini: The Television Concerts, Vol. 8: Franck, Sibelius, Debussy and Rossini (1952).