Goofs:
Anachronisms: US fleet subs of that era were incredibly cramped and would not have contained as much leg and head room as the one depicted in the movie. The submarine set used for interior shots is built on a larger scale to accommodate both actors and the shooting crew. (more)

Trivia:
Some filming for this movie took place on an actual WW2 submarine. The USS Silversides (which is available for tours) located in Muskegon Michigan was towed out into the middle of Lake Michigan where scenes with Bruce Greenwood were filmed. The Silversides had some minor re-painting done (rust coloration), but is now back to her original gray color. The rest of the sets and models used in this movie were all based on the look and layout of the Silversides. (more)

Filming Locations:
Lake Michigan, Illinois, USA (more)

Quotes:
Lt. Loomis: Grow some dicks and shut up! (more)

Awards:
1 nomination (more)