Open City or Rome, Open City (Italian: Roma città aperta) is a 1945 Italian neorealist drama film directed by Roberto Rossellini. The picture features Aldo Fabrizi, Anna Magnani and Marcello Pagliero, and is set in Rome during the Nazi occupation in 1944. The title refers to Rome being declared an open city after 14 August 1943. The film won several awards at various film festivals, including the most prestigious Cannes Grand Prix and was nominated for the Best Adapted Screenplay Oscar at the 19th Academy Awards.

References:
https://en.wikipedia.org/wiki/Rome_Open_City