Hans Fritz KöllnerHans Fritz Köllner was a German screenwriter. He also directed the 1946 film Allez Hopp.Selected filmographyA Love, A Thief, A Department Store The Song of the Sun The Double Fiance A Hoax The Empress's Favourite The Star of Rio Front Theatre Allez Hopp Hit Parade If I Only Have Your Love The Doctor's Secret The Star of Rio As Long as the Roses Bloom Two Hearts in May Arena of Fear ''My Daughter Patricia''