With her father fighting in World War I, young Sara enrolls in boarding school and clashes with a headmistress who tries to stifle her self-worth. Watch trailers. A Little Princess Sara Crewe is sent to live in a boarding school where her late mother attended while her father goes off to fight in the war. Even though being. A Little Princess () Official Trailer - Alfonso Cuarón, Liam Cunningham Movie HD - Duration.