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This silly send-up of spy and suspense movies focuses on William Beddoes (James Garner), an American businessman traveling in Lisbon, who is mistaken for a British secret agent. When shady characters such as Antonio (Tony Franciosa) and Celeste da Costa (Melina Mercouri) come to believe that Beddoes is carrying a caché of valuable diamonds, he is pursued through a variety of gorgeous Mediterranean locales, aided by beautiful blonde Amy Franklin (Sandra Dee). Wikipedia