From about 1910 to 1970 Reno, Nevada was the world's divorce capitol. In most states, the courts either did not ever grant divorces or had requirements almost impossible to meet. If one was a citizen of Nevada you could get a divorce fairly easily; after 1931 a mere 6 weeks' residency in Nevada conferred citizenship. Divorce ranches became a big business, giving women vacation spa accommodations during their residency. And for women who valued expediency, divorce offices frequently opened directly into wedding chapels.
Several people are in studio records/casting call lists as cast members, but they did not appear or were not identifiable in the movie. These were (with their character names): Edgar Buchanan (Doorman), Walter Sande (Charlie's Photographer), Frank Darien (Greenwich Editor), William Austin (Hotel Manager), Nell Roy (Telegraph Operator) and Mary Gordon (Scrub Woman).
Features two actors who played romantic losers to Fred Astaire: Reginald Gardiner lost Joan Fontaine to Astaire in "A Damsel in Distress" and Georges Metaxa lost Ginger Rogers to Astaire in "Swing Time."
New Yorkers getting married in Connecticut was a common thing in 1930s movies. At that time, New York required blood tests, a waiting period, license, etc. In Connecticut you could get married instantly, with no red tape. Connecticut became the go-to-place for impromptu, and often unwise, weddings.