 FACT: There are so many nautical mistakes in this film that it would  take hours for me to list them all. For one, there are no navigation  lights (masthead, port and starboard) visible during the shot of the  ship sailing at night. Also, the ships officers and naval crew do  not use the proper radio vocabulary when using the communication  devices (for example, the word "repeat" is not used. The proper  words are "Say Again"). I could go on and on. Did they even have any  seafaring advisers for this film?