In the tombstone where Borja places flowers, where his mother and brother Vicente are buried, the mother is identified as Irene María Ovando de Díaz. Following the norm in Latin America (first the father's name, followed by the mother's name) her two sons should be named Vicente Díaz Ovando and Borja Díaz Ovando. But the tombstone reads Vicente Díaz Olivos, so any Latin American can think that she was not really Vicente's mother, but another woman with Olivos as her surname.
The film is set on Christmas Eve in 1986, but two songs heard along the flick, ''Creo que voy a morir'' and ''Ella llora'', were released in 1988's album ''Que nos devuelvan la emoción'' by Upa!.