Benjamin Stoloff took over direction of the film after George Nicholls Jr. was killed in an automobile accident on 13 November 1939 during production.
Lucille Ball was in the fifth year of her contract at RKO and had become that studio's "Queen of the Bs". But, in about 17 years, she, along with her husband Desi Arnaz would own the studio.
Near the beginning of the film, Jim Malone flies into the Marine camp in a Ryan ST low-wing monoplane. It first flew in 1934 and a total of 1,568 of all variants had been made when production ceased in 1943. It was the Ryan Aeronautical Company's most successful aircraft. Originally designed as a "sport" civilian airplane, by 1937 it was being sold as a military trainer to air forces around the world as low-wing monoplane fighters became the standard.
Danny and Jim fly their mission to spot the bandit's camp in a Douglas XO-14, a one-off variant of the O-2 observation aircraft originally made for the U.S. Army. A total of 879 of all variants were made from 1923 to 1936. As of 2021, only parts from one wrecked plane are known to exist.
The airplane Danny files to help look for Joan is a 1937 Fairchild 246, registration NC19109. Produced from 1932 to 1948, 2,232 were manufactured. The military version used during WWII was designated as the UC-61 "Argus", a utility aircraft. As of 2021 this plane is still registered with the FAA as airworthy.