Question: What nationality is the actress who played Sylvia in a film which follows Marcello Rubini, a journalist writing for gossip magazines, over seven days and nights on his journey through the "sweet life" of Rome in a fruitless search for love and happiness?
Sentence (from "Anita Ekberg"): She is best known for her role as Sylvia in the Federico Fellini film "La Dolce Vita" (1960).
Relevant evidence: Yes