 He co-wrote the screenplay for "Johann the Coffinmaker" (1927), a 27-minute experimental film directed by Robert Florey that involved a lot of trick photographic effects.Vorkapić co-directed the experimental black and white short motion-picture "" (1928) with Robert Florey, and 2 beautiful and exciting visual tone poems, "Moods of the Sea" (1941) and "Forest Murmurs" (1947) with his Hollywood colleague, the Hungarian-born montagist and cinematic filmmaker John Hoffman (1904–1980).His one-minute montage sequence for the otherwise lost movie "Manhattan Cocktail" (1928), directed by Dorothy Arzner, was released in the October 2005 DVD collection "Unseen Cinema