When the government became more liberal in the 1960s , Vávra 's cinema entered into his most prolific period , producing '' Zlatá reneta '' ( 1965 ) , '' Romance pro křídlovku '' ( 1966 ) , '' Kladivo na čarodějnice '' ( 1969 ) , and later '' Komediant '' ( 1984 ) . His 1967 film '' Romance for Bugle '' was entered into the 5th Moscow International Film Festival where it won the Special Silver Prize . In the 1970 's Vávra produced his " War Trilogy " consisting of semi-documentary movies '' Dny zrady '' , '' Sokolovo '' and '' Osvobození Prahy '' , all being heavily influenced by communist propaganda . The film '' Dny zrady '' ( '' Days of Betrayal '' , 1973 ) was entered into the 8th Moscow International Film Festival where it won a Diploma . In 1979 he was a member of the jury at the 11th Moscow International Film Festival
11th Moscow International Film Festival
11th Moscow International Film Festival
Otakar Vávra