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Watch The Great De Gaulle Stone Operation (Short 1965) online — it may be available on legal streaming platforms such as YouTube, Netflix, Prime Video, Hulu, Disney+, and others.

Inspector Clouseau is assigned to guard a large diamond, the De Gaulle Stone, from theft, but a three-headed villain in a black coat promptly takes it from him. Clouseau and Sergeant Deux-Deux track the three-headed thief to his hideout, where the thief has secreted the jewel in a glass of water. While searching the premises, Clouseau finds the glass, drinks its contents (jewel included), and is rushed to surgery. Doctors remove “a very expensive-looking gallstone” and give it to a nurse, who is the three-headed thief in disguise!