If you want to see a good Submarine movie, don't see this one.

Rating: 2/10 (29 April 2000)

If you want to see a good submarine movie, go rent or buy Das Boot.
WARNING: SOME PARTS OF THIS REVIEW CONTAIN POSSIBLE SPOILERS!
If you have any knowledge of World War II German submarines this movie will drive you up the wall.
The submarine is not a World War II Submarine. The external shots of the sub show 3 main guns. The German Subs of that time only had 1 main gun. Also the sub is way to wide, German subs were made extremely narrow. This can seen really well in Das Boot (1981) where the sub is an exact replica of the original German Sub.
The music was okay, but not very memorable. It did fit the film, but was not used very effectively. Now the folly was atrocious, nothing added more to the disbelief of the movie more than the folly. The most noticeable mistake was the depth charges sounded like land explosions and at other times like slamming doors. Explosions under water have a very distinct muffled sound which was completely missing.
Since I'm on the matter of depth charges I should mention that U-517 would have been blown to shreds with how close those depth charges were exploding to the hull.
Another unbelievable event was at the end when the torpedo blows up the destroyer. I'm sorry, 1 torpedo of that time could not cause the size of explosion that one torpedo did. Worse off, if you watched while it was exploding, where the torpedo supposedly hit, there was no hole in the hull even thought the rest of the ship was exploding. Obviously the model was blown up by people with no knowledge of how things explode since the explosions did not look to originate from where the torpedo hit.
The machine gun fire in the sub was completely unrealistic, when bullets are fired inside something metal most of the bullets will ricochet inside of object, where others will stick in to the metal or rip through it. With the number of rounds fired in the ship at least one person would have been hit by their own fire, many of the gauges and pipes would also have been riddled with bullets. If the gun fire didn't get some of those gauges the grenade they dropped down in to it would of. As it was the whole taking of the sub didn't do any damage to it at all.
Other things some people might find trivial were the misquoting of technical information such as safety sub depths, the unrealistic results of when the sub went down to 200 meters, the color of the German crew's skin was way to dark, and the bad German speech of the first submarine's crew. They were speaking the words right, but had North American accents.