Perfect Ocean
Since the entire movie takes place on a ship in the ocean, it would make sense for viewers to pay careful attention to the surrounding body of water. Well, only if they were forced to watch the movie over and over again. Anyway, people were quick to take notice of the Atlantic’s pristine clarity.
Anyone who’s ever been to the ocean, even in the middle of the ocean that’s mostly free from pollution, can attest that the water is anything but crystal-clear. The Atlantic is a murky body where vision from the surface is limited to just a few feet.