The movie spent around 10 years in development hell, with several projects announced and then canceled. The first--around the year 2000--had director Juanma Bajo Ulloa at the peak of his popularity after "Airbag", and Nacho Cano from Mecano as composer.
Elsa Pataky was attached to play Sigrid.
The comic on which this film is based was very popular between the 1950s and the 1970s.