This was the first of a series of Latin American-themed movies that became very popular with American audiences in the 1940s.
Darryl F. Zanuck produced the film in response to President Franklin D. Roosevelt's "Good Neighbor Policy" of friendship towards Latin American countries. Also, with the war in Europe starting, Zanuck hoped to develop Mexico and South America as alternative markets for his Hollywood films. However, while
Serenata argentina (1940) was a success in America, the Argentines hated it! When the film was screened in Buenos Aires, Argentine government officials refused to allow it to be shown in any theaters in their country. Among the things the Argentines objected to: (1) None of the Argentine characters in the film spoke with an Argentine Castilian Spanish accent. (2) Several Argentine characters are depicted as lazy, freeloading, or dishonest. (3) The three Argentine bankers who greet
Betty Grable at the airport speak to her in fractured English, when most upper-class Argentines spoke perfect English. (4) Casiano, the horse groom played by
J. Carrol Naish, wears a "gaucho" outfit ("gauchos" are Argentine cowboys, not horse ranchers). (5) Although
Carmen Miranda was popular in Argentina, she was Brazilian and sang Cuban-inspired songs in Portuguese. Her presence in the movie gave the impression that Argentina is a tropical country, when it is a mountain country.