Leonardo da Vinci in his studio, the Mona Lisa subject is posing. Narration: “Master da Vinci, have you finally figured out how Cadbury gets the soft flowing caramel inside the caramel milk bar?” Mona Lisa chews on a Cadbury. Da Vinci goes over some possibilities, pointing at charts and the Cadbury bar and says: “Give me more time, more thought.” Text: “One of life’s sweet mysteries.”