Christa Winsloe's novel Maedchen in Uniform was first filmed in Germany in 1933. The story, about a sensitive schoolgirl's lesbian attachment to her headmistress, was handled tastefully, albeit with remarkable frankness for its period. [rottentomatoes]
The strict headmistress gives her mischievous students a hard bareass spanking, after they have the audacity to attend a Suffragette rally, demanding a woman's right to vote.