How many movies have Venyamin Basner and Zhanna Sukhopolskaya collaborated on?

They have worked on 3 movies together! Their first movie together was Leningrad Symphony (1957) while their highest rated movie together was The Siege: Leningrad Metronome (1977). They have not worked together since The Siege: Operation "Iskra" (1977). They are most known for their war films together.