An American girl on vacation in Italy finds an unanswered “letter to Juliet” — one of thousands of missives left at the fictional lover’s Verona courtyard, which are typically answered…

An adaptation of Milena Agus’ eponymous novel set after WWII, “Mal de Pierres” (“Mal di Pietre”) spans 20 years, following the destiny of a passionate, free-spirited woman who is in…