In this STRICTLY Limited Edition (only 500 exist) the focus is not just on Laloux, but also on artist Philippe Caza, on whose illustrations the film is based. Included is Caza's sketchbook about the making of Gandahar, and there is even a Blu-ray of another film based on Caza's work: Philippe Leclerc's The Rain Children (Les Enfants de la Pluie).
Do note that this set is NOT English-friendly: all dubs and subs are French only. But hey, this in part a Canadian website, right? And I hope to give an English-language distributor a nice idea or two.
And the whole set does look mighty pretty, so here is a gallery of shots. Click on the edge of the pictures to scroll through them, or at the center of each to see a bigger version.