The Great St. Trinian's Train Robbery

Train robbers hide their considerable loot in an empty country mansion only to discover, upon returning years later, it has been converted into a girls' boarding school. When they try to recover the money, the thieves run up against a band of pestiferous adolescent girls, with hilarious results. Based on the cartoon by Ronald Searle. Sequel to "The Pure Hell of St. Trinian's."