The real question here, for those who like submarine films, is which is worst - this film or 'Crash Dive' starring Michael Dudikoff? Both films are examples of the worst type of film-making ... appalling acting, derivative storylines, cheap sets and dialogue so stilted that it could be spoken better by speech synthesizers.
The recipe for this film is easy to understand: Think 'Hunt for Red October' mixed with 'Crimson tide' then take away the budget; hire cheap actors and a laid-off film crew who need some tea money. Throw in some stock footage and cheap effects and then release it without bothering to cast an eye over the end result.
Voila - the result is 'Steel Sharks' or 'Crash Dive'. Take your pick - they're both ghastly. Even a 1 star rating is too generous. Heaven alone knows how this film ever got moved onto DVD. A VHS release is unbelievable enough!