The tile of this film refers to Charles Chaplin' "City lights". Carlos Gardel had met Charles Chaplin in 1931 in Nice, France. Talkies had recently appeared and when Chaplin's film was released in Buenos Aires, it included "musical pictures" (a kind of primitive video-clips) performed by Carlos Gardel. This gave the script writers Manuel Romero and Luís Bayón Herrera the idea for their film title.
In the opening credits it can be read "16 bellezas criollas" (16 creole beauties) but only 13 of them appear in the film because two of them had to go back to Buenos Aires before the movie was filmed and the sixteenth is in fact the main dancer). The girls were the usual chorus girls from Sarmiento theatre.
Part of the film is supposed to be set in the Argentinian plains but in fact it was filmed on location in Évreux, Normandie, France. The whole film was made in France.
Pedro Quartucci, who plays Pablo Soler, an ex-boxer who becomes a singer and dancer in the film, was really an ex-boxer that won the bronze medal in 1924 Olympic games in Paris and who became singer and dancer after leaving the ring. The role was written on purpose for him.