2. It is impossible for a German submarine to survive a close encounter with a destroyer. Although it is pointed out in the film that the distance is too close and the gun cannot hit the submarine, the machine gun on the destroyer can still sink it.
3. In the movie, the destroyer dropped at least 80 depth charges on No. 571, but in fact the German warship never carried more than 30 depth charges.
4. It is almost impossible for U-571 to sink a German supply submarine. There has been only one case of submarine sinking in history. It was created by a British submarine in 1945 when the German U-864 was sunk because of the German army. The sonar system is far less advanced than that of the UK.
5. The biggest flaw is that the German supply submarine does not have a torpedo launch system at all, how can it sink S33?
6. The model of the German navy patrol aircraft that appeared in the film was not equipped on a German
destroyer at all during World War II .
In a word, in order to make the plot nervous and attract attention, the director composes whatever he wants.
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