In one scene Joan Manion (played by Joan Leslie) is asked by Fred Atwell - a.k.a. Fred Burton (played by Fred Astaire) if her boss, Mr. Harriman (played by Robert Benchley), has ever proposed marriage to her: She replies that he has attempted to numerous times, but keeps getting side-tracked by discussions of such things as the "love life of a polyp". It turns out that in one of Robert Benchley's earliest films he played a "Doctor Benchley" in the film The Sex Life of the Polyp (1928) where he lectures Women's Clubs on this interesting creature that can change its sex.
Some moviegoers complained after the movie came out about the amount of glass that was destroyed by Fred during his solo dance number in the bar, as Americans had been contributing similar items for the war effort.
Joan asks Phil why she can't be sent to Russia like Margaret Bourke-White. Bourke-White was a very well known photographer for Life magazine at the time, being hired as the publication's first female staff photographer in 1936. Bourke-White was the first female war correspondent and the first woman to be allowed to work in combat zones during World War II. In 1941 she traveled to the Soviet Union just as Germany broke its non-aggression pact with them. She was the only foreign photographer in Moscow when Nazi forces invaded on June 22, 1941.