a rip-off of ...
Yes, a complete rip-off of Robert Wise's 1958 film "Run Silent Run Deep", almost the exact same plot (http://www.imdb.com/title/tt0052151/?ref_=nv_sr_1)
shareIs there some similarity beyond the fact both films take place on a submarine and both feature some degree of tension between the Captain and the XO?
"Morbius, something is approaching from the southwest. It is now quite close."