Marguerite Duras based her film Les mains négatives on the Magdalenian caves at the Atlantic coast, where the imprints of hands were found. Thirty-thousand years ago, someone placed her hand against the cave wall and sprayed pigment over it, creating a coloured halo of the hand. When she did this, her hand transformed from a tool into an image. The moment the painter made these imprints is fossilized. Even though the moment of this act took place thousands of years ago, it still exists.