The budget for the film was $3 million, which included the construction of a replica of Rome's most famous street, the Via Veneto, on the Cinecittà lot, and location filming in the village of Sant' Angelo on Ischia in the Bay of Naples. The Sevalio sequences were shot during the height of the tourist season. Reportedly the villagers of Sant' Angelo were so busy accommodating tourists they had no time to appear in the film; extras were brought in from a neighboring village.