The Vatican Film List by RobinJRichards

Question 8

(Values, 1945) "Composite picture of the resistance movement in [the titular German-occupied city] focusing on an underground leader (Marcello Pagliero) hidden by a widow (Anna Magnani) until he's betrayed to the Gestapo, then tortured and executed along with a partisan priest (Aldo Fabrizi). Director Roberto Rossellini began filming while German troops were still in the city and the result has a documentary quality giving a sense of immediacy to the period..."

Rome, Open City (Open City or Roma città aperta)