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In the 1962 comedy film "The Road to Hong Kong," Joan Collins played the lead role of Diane, the love interest of Bing Crosby's character. Directed by Norman Panama, this adventure-comedy follows Bob Hope and Bing Crosby as they travel from London to Hong Kong, encountering various comedic mishaps along the way. Joan Collins' performance as the sophisticated and charming Diane adds to the film's lighthearted and entertaining tone.