A Morgadinha dos Canaviais is a 1949 Portuguese film directed by and , featuring Eunice Muñoz as Madalena and Maria Matos as Vitória. The film is based on the romance novel of the same name by Portuguese novelist Júlio Dinis, published in 1868. Set in the nineteenth century, the story revolves around Madalena Constança, a girl of great beauty and generosity.