So a gallon of salt water weighs 8.556 lbs.A pint's a pound, the world around.. That's a common expression. A pint is 16 fluid ounces and 16 fluid ounces of water weighs approximately 16 dry ounces.
If you ask the real Captain Sully, the answer is that Sully is pretty damn accurate. Based on his book, Highest Duty, Sully stays true to many facts of the real story, particularly as it pertains to the investigation by the National Transportation Safety Board. The level of detail, the granularity of it... All those kinds of things translate pretty well to the screen, and it seems real.
Throughout the Uncharted series, Sully appears as a major character and ally to Nathan Drake and his friends, often joining him in his various adventures. In all of his appearances, Sullivan is voiced and motion captured by Richard McGonagle.