Santi wrote:That same thing has happened to thousands of girls.
That's certainly true, and Lilya was almost certainly based on the experiences of those girls.
An example of another "based on the life of" film is the 1981 German film "Wir Kinder vom Bahnhof Zoo", released as "Christiane F" in many countries.
Possibly the most horrific film I've ever seen.
Think of Lilya with the addition of heroin.
But unless it's an actual biography it still falls under the definition of "fiction".