The church at the end of the film is the Basílica Pontificia de San Miguel in Madrid (it belongs to the Opus Dei) in C/ San Justo, 4. The main door of the house is in the building next to the Basílica (C/ San Justo, 6).

The lyrics of the chotis "Madrid tiene seis letras" is changed in the film. The chotis says: "Madrid tiene seis letras, M de Maravilla, la A viene de Andoba", but in the film they change "La A viene de Alegre". (Andoba is a word used in Spanish "castizo" but with gypsy origin, meaning "someone" in a disrespectful sense.)

Trini (Tony Soler) appears in 1970 version playing the "amiga de Engracia".