We recently re-watched "Roberta" starring Irene Dunn, Randolph Scott, Fred Astaire and Ginger Rodgers. I had forgotten how much I love this film! The third Fred and Ginger movie, it is a story revolving around a Paris dress shop Roberta's. Of course there is lots of wonderful dresses and dances!
If you watch the movie, keep your eye out for a young Lucille Ball as a model and don't skip the opening credits! Very classic 30s deco!