The Canterville Ghost.

In the seventeenth century, Sir Simon de Canterville is forced by the Code of Chivalry to engage in a duel on behalf of his brother. His proud father, Lord Canterville, refuses to acknowledge that his son has disgraced the family name. Next, during World War II, US Army Rangers are billeted in the castle, owned now by a six-year-old Lady Jessica de Canterville. The Rangers encounter Sir Simon but rather than being terrorized, humiliate the ghost with a mock haunting.