Although this was not an official sequel, Allyn Joslyn and Evelyn Keyes had played similar characters in Dangerous Blondes (1943) the previous year. Joslyn plays a comic book artist here and a crime fiction writer in "Dangerous Blondes". In both stories Keyes plays his wife, and they act as amateur sleuths. Jack Henley worked on the script for both films.
Bill's tiny car is a 1931 American Austin roadster, manufactured in Butler, Pennsylvania. The original base price was $395 ($6,815 in 2021). It got 40 miles per gallon with its 747cc 4-cylinder engine and had a top speed of 50 miles per hour. Only about 8,000 of these cars were made as it was during the depths of the Depression and one could get much more car - and a faster one - for only $100 more from Ford. Manufacturing of this car ceased in 1932.
The U.S. was deep into WW2 at the time this film was released, so refugee benefit events were a common occurrence, especially among the more wealthy classes.
Although clothing and fabric were being rationed for the war effort, studios were allowed to produce more extravagant fashions for the screen, to bolster the morale of troops and public alike.
$200,000 would be just over $3.1 million in 2021 dollars.