Even though the title says that the protagonist is 17 years old, Rocío Dúrcal was already 20 years old when the movie was released.
The story is an adaptation to modern day of a mixture of the two classic fairy tales Snow White and the Seven Dwarfs and Little Red Riding Hood.
With this movie, Rocío Dúrcal ended her contract with Epoca Films, ending with this her career of teenage roles, deciding to pursue from then on roles more according to her real age. In this movie she was 20 years old but portrayed a 17 year old teenage girl. The end of Dúrcal's contract pushed Epoca Films to find another young star to replace Dúrcal, which prompted them, after a casting, to hire future star of acting and music Ana Belén, then 12 years old, in the failed movie Zampo y yo (1966).