Eleanor Powell and Fred Astaire in Broadway Melody of 1940 -- "The last of the big black and white production numbers, starring Eleanor Powell and Fred Astaire, Cole Porter's music, the sets, camera work and direction by Norman Taurog, the incredible tap dancing by these two, well, it all seemed to come together in Broadway Melody of 1940. You know, you can wait around and hope, but I'll tell you, you'll never see the likes of this again."

-- Frank Sinatra,
That's Entertainment, 1974 (less info)