Many members of the cast and crew came down with minor infections due to being in dirty water for so many hours a day.
Guinness World Records considered the ship in this movie as the most detailed CG-design in their 2010 edition.
The "upside-down" set was built on top of a large water tank in the sound stage so that it can be filled with water and drained in a matter of a few hours.
Richard Dreyfuss has stated in numerous interviews that he did the film only for the money. In 2017, he Tweeted that he used the money to get his son Ben Dreyfuss into college.
Josh Lucas was injured on-set during underwater filming when Kurt Russell banged his flashlight into Lucas' head, injuring his eye.