About ten years ago I saw a movie on tv where the world was flooded and there was no land (at least they thought so). People lived on ships and travelled around, sharpies/felt tip pens were very valuable because it was rare to find one that was dry and still writing (not wet and diluted from being underwater). I remember a child in the movie being extremely happy when recieving a sharpie. At the end they find land. Im about 90% sure it is an American movie. Thats all I really remember but it has been stuck in my head for a few years now and i would really love to watch it again. I would be so very happy if anyone could help.