Check out the trailer for the new feature documentary “Invisible Essence: The Little Prince” featuring the captivating life of Antoine de Saint-Exupéry and the genesis of his masterpiece. A major focus of the film is the first-ever tactile art book of “The Little Prince” with drawings in relief for the visually impaired by Dr. Claude Garrandes and his association Arrimage, supported by the Antoine de Saint-Exupéry Youth Foundation, with a special appearance in the film by its Chairman, François d’Agay, godson and nephew of the famous writer-cum-aviator.