What You Never Knew (Spanish: Aunque tú no lo sepas) is a 2000 Spanish romantic drama film directed by Juan Vicente Córdoba [es] (in his directorial debut feature) based on Almudena Grandes' short story "El vocabulario de los balcones" which stars Sílvia Munt and Gary Piquer alongside Andrés Gertrúdix, Cristina Brondo, and Daniel Guzmán.

Split in two different times (1974 and 1999), and set in Madrid, the plot follows the botched love story between a well-off woman and a vulgar man from Vallecas who first met upon facing each other from balconies on opposite sides of the street.

[1][2] The film is an adaptation of Almudena Grandes' short story "El vocabulario de los balcones", included in Modelos de mujer.

[7] The film is an Enrique Cerezo PC and Samarkanda production and it had the participation of TVE and Vía Digital [es].

[5] Jonathan Holland of Variety deemed the film to be a "graceful love story that shuttles back and forth between time periods and between pleasure and frustration".