Jiří Menzel’s classic film Larks on a String, about victims of communism forced to work in a huge scrapyard, was completed in 1969. However it was then put on a blacklist by the regime, where it remained until 1990 – when it won the Golden Bear at the Berlinale. This week the movie is going back to Berlin, in a newly restored version. I discussed it with Michal Bregant, head of the National Film Archive.