In Werner Herzog's Fitzcarraldo, when they move the ship from the top of the hill down to the Ucayali, the water is flowing from left to right. But according to the maps shown and the sketch drawn by Kinski in the film, it should go from right to left.
I am a little bit puzzled by this fact, as I always assumed they really dragged this ship over the hill while shooting the film. Is there any information out there on how and where the scene was shot?