Déculottez-vous mesdemoiselles (1979)

The film opens with Marilyn Jess and Julai Perrin being made to remove their panties by the headmaster.Then there is an abrupt cut to Dominique Saint Claire (Madame Birch, the owner of the Pensionnat Birch) leading a horse accross a field accompanied by Danièle Troeger. Cut to Jean-Pierre Armand, with curly hair and moustache, driving a bus up to Dominique's house. He goes in and she plays the dominatrix in a b/g scene dressed in her hacking jacket.