Gwen, or the Book of Sand

Gwen, or the Book of Sand French Gwen, ou le livre de sable is a 1985 French animated science fiction film written and directed by JeanFranois Laguionie, using gouache. It is alternatively known as Gwen, Gwen and the Book of Sand, Gwen, the Book of Sand and similar variations.

The film won the Grand Prix de la critique at the Annecy International Animated Film Festival, and the featurelength film award in the Los Angeles festival.

Source: Wikipedia