His training in cinema was thorough and extensive and he became expert in many facets of film-making. (His brother Renzo Rossellini, also was involved in the industry, scoring films.) He did his apprenticeship as an assistant to Italian filmmakers, then got the chance to make his first film, a documentary, "Prélude à l'après-midi d'un faune", in 1937. Due to his close ties to Benito Mussolini's second son, the critic and film producer Vittorio Mussolini, he flourished in fascist Italy's cinema. Once Il Duce was deposed, Rossellini produced his first classic film, the anti-fascist Roma città aperta (1945) ("Rome, Open City") in 1945, which won the Grand Prize at Cannes. Two other neo-realist classics soon followed, Paisà (1946) ("Paisan") and Germania anno zero (1948) ("Germany in the Year Zero"). "Rome, Open City" screenwriters Sergio Amidei and Federico Fellini were nominated for a Best Writing, Screenplay Oscar in 1947, while Rossellini himself, along with Amidei, Fellini and two others were nominated for a screen-writing Oscar in 1950 for "Paisan".