 True dramatic episodes took place there.” The first ten days of filming took place on the Serchio River, covering the battle sequence that opens the film.A scene that recreates the Sant'Anna di Stazzema massacre was shot where the atrocity took place; the massacre—in which over 500 villagers were murdered by German occupation forces—is re-enacted in the film.Filming then took place in Rome for one month; in New York for four days; in White Castle, Louisiana for two days; and in The Bahamas for two days.