St Trinian's 2: The Legend of Fritton's Gold
The boarding school's anarchic female students discover newly appointed head girl Annabelle Fritton had a 16-century nautical ancestor who acquired a rather large treasure trove on the high seas. The girls have one of the keys to finding its location, but also determinedly on trail of the Spanish loot is the devious and amoral Sir Piers Pomfrey, who is not alone in his desire to stop them.