Like all the sub movies mentioned. Have them on DVD except Das Boot. When I was a kid I used to watched an American show called the Silent Service made in 1957. It was a documentary dramatic anthology about the U.S. Navy's submarine fleet and all the stories were based on fact and the realism was heightened by actual use of Navy combat footage.
This was the show that got me started with my fascination of submarines. If there's a war movie about subs I've seen it. U571 is very well done.
TREK IS TREK. WHATEVER THE TIMELINE!
The next TV Series should be called STARFLEET!