Good Night and Good Luckâ€™s period atmosphere is supplied, in part, by Diane Reeves singing standards. She is important to the movie as a dramatic element. On the sound track and on camera, she does some of her finest work in the uncomplicated setting of a rhythm section and a tenor saxophonist. Reeves and her record producers have rarely seemed to understand that she is at her best just singing songs, without elaborate orchestral trappings, overlays of soul or forced emotion. The filmâ€™s sound track CD is the purest recorded expression in years of her remarkable talent.