Hmm, I'm having trouble placing this one. I think it's from a musical. Maybe The Bandwagon?
Nanette Fabray Says that to Oscar Levant in the Bandwagon, I think.
Yay! This is one of my favorite lines from The Band Wagon! It was spoken by the fabulous Nanette Fabray, who really did steal the show from Astaire and Charisse.
Oop. Wendymoon has beat me to it.