David Niven manages to recapture some of the charm of his earlier "Raffles" role as the polished and refined "Sir Charles Lytton." He portrays a man comfortable in high society, always present at exclusive gatherings where valuable jewels seem destined to disappear. It hadn't occurred to anyone until “Clouseau” (Peter Sellers) and his wife “Simone” (Capucine) showed up at an elegant hotel, also hosting the "Princess"…