 Before World War II Joseph Pustylnik wrote music for films, in particular, he wrote the music for the film "Patriot" (1939) and "Return" (1940).However, it was always drawn to the genre of Opera.In 1933 he created later became his most popular work is the children's Opera in his own libretto to the poems of Samuil Marshak "Fire", which for many years was sung on the radio and pleasing to the pre-war kids.