Secreto de Confesión was the first Filipino film in the Spanish language, presented at the time as la primera película hablada y cantada en español producida en Filipinas ("the first film spoken and sung in Spanish in the Philippines").

Secreto de Confesión was screened with great box office success in the United States, Cuba, Puerto Rico, and several other Spanish-speaking countries in the American continent.

Other Filipino films in Spanish from the same period, such as Hágase tu voluntad, Las Dulces Mestizas, Muñecas de Manila or El Milagro del Nazareno de Quiapo, had an even greater success at the box office, and started to create international distribution channels for the Philippine film industry spoken in Spanish.

A Tagalog version, produced years later, was screened after the end of World War II in 1945 in major cities throughout the Philippine archipelago, but with very limited box office success.

Guillermo Gómez Rivera, Spanish-speaking Filipino writer and academic, director of the prestigious Academia Filipina de la Lengua Española (Philippine Academy of the Spanish Language), is credited with the recovery of this film in the memory of the Filipino film industry, which had forgotten it for decades.