The schoolgirls of St. Trinian's are more interested in racing forms than books; as they try to get rich quick, they are abetted by the headmistress' brother.The schoolgirls of St. Trinian's are more interested in racing forms than books; as they try to get rich quick, they are abetted by the headmistress' brother.The schoolgirls of St. Trinian's are more interested in racing forms than books; as they try to get rich quick, they are abetted by the headmistress' brother.