Lyric discussion by sillybunny 

Cover art for Sisters lyrics by Irving Berlin

The "Sisters" comedy act that Bing and Danny perform was not originally in the script. They were clowning around on the set and the director thought it was so funny that it was written in.

Even though Betty was the elder of the Haynes sisters, Rosemary Clooney was actually seven years younger than Vera-Ellen in real life.