Sub movies WWII era - my favorites:
Das Boot
Enigma (butchered by love story b.s. like Pearl Harbor, but I enjoy it)
Run Silent , Run Deep
The Enemy Below
Torpedo Run
We Dive At Dawn
U-Boat War DVD [a documentary not a movie] 3 DVD's
Titles: [inside the U-Boat War DVD case]Sea Wolves
Attack America
Iron Coffins
Sub movies outside of the range of WWII [before/after]:
The Hunley
Crimson Tide
Ice Station Zebra
On The Beach
The Bedford Incident
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No mention of U-571 was made or will ever be made [intentional] because it belongs in the movie Twister when Dusty was describing the SZ of a Tornado - [the] Suck Zone.