Emilia Guiú's debut.
A young Mexican ranchera singer named Guillermina Jiménez got her stage name from the title of this movie. Several years later, when Flor Silvestre was a featured performer at the prestigious Mexico City nightclub El Patio, an irritated Dolores said to her friend (and the director of this movie) Emilio Fernández that Guillermina "doesn't need to call herself Flor Silvestre. I am Flor Silvestre!" "In the movie," Emilio replied. "But she is a singer, and she is called Flor Silvestre." All three would later act in Sturm über Mexiko (1959), but Dolores and Flor don't share any scenes together in the film.