I love her! So simple a line... but she delivers it with such a fullness and funny timing that is so true to her character, but still unequivocally Maggie Smith.
Her Ladyship complains about the light intensity, but whith all those table lamps and the huge candelabra, the drawing room is still rather dark in this scene.
"I feel as if I were on stage at the Gaiety". The Gaiety was a famous London theatre, particularly infamous for bawdy comedy and the employment of female burlesque dancers; it's a very disparaging comparrison.