Thanks for bringing up The Enemy Below. It's a little far fetched, IMHO, but probably the second best submarine film made, after Das Boot, which is far superior in special effects, script, sound, realism and acting, although I hate to compare the acting style of the 50's to the acting styles of the 80's. Besides, Curt Jurgens and Robert Mitchum--hubba! hubba!
I'm ashamed to say I've still never seen The Caine Mutiny. I know it's good and one day I'll get around to watching it.
Run, don't walk, to your neighborhood video store then. You won't regret it.
We'll just agree to disagree on the sub movie thing. I probably should have included Run Silent, Run Deep on that list as well.