For weeks now, the ranks of Chinese visitors to Hong Kong have swelled with a brand-new category of tourists: moviegoers. In a response to the censoring of a film about love and betrayal in Shanghai during the Second World War by the Taiwan-born director Ang Lee, mainland movie fans have flocked by the thousands to Hong Kong to see the full, uncut version of the film, "Lust, Caution." Howard W. French reports.