La Révolution des crabes

In the brown waters of the Gironde estuary, between rocks repainted with fuel and the muddy sands that provides the best oysters in the world live the Pachygrapsus Mormatus - more commonly known as the "depressed crabs". Like ordinary crabs, the depressed crabs walk sideways; however they are cursed in a special way because they cannot turn around. Hence whatever straight line they are born in, it is that that they will be forced to walk for their lives. (imdb)