As the actions of the captain become more obsessive, Munceford tells him, "You're not chasing whales now!" This is a reference to Captain Ahab, the single-minded whaling captain in "Moby Dick" by Herman Melville, whose obsession leads to the destruction of his crew and on whom the character of Capt. Finlander was ultimately based.
"Novosibirsk", the Russian submarine's escort ship (misspelled on its hull), is the name of an actual city in Russia. In English, the name translates to "New Siberia." This large city is located east of the Ural Mountains, in southern Siberia.
The name of the Bedford's captain, "Eric Finlander" (played by Richard Widmark) is an obvious reference to the nation of Finland, which has a long and troubled history with its much larger neighbor to its east, the USSR/Russia. Finland was actually part of Russia for more than a century and as an independent nation fought Russia in the Winter War and the Continuation War, which together cost Finland 10% of its population and in which Russia's war dead totaled more than 300,000.
The live-action images of the fictitious Bedford, outside and inside, are of Britiish frigates. The modelers created a miniature replica based on the U.S. Navy's Farragutclass frigate/destroyer Leader.
The live action images of the fictitious BEDFORD, outside & inside, are of & from Britiish frigates. The modelers created a miniature replica based on the U.S. Navy FARRAGUT class Frigate/ (later) Destroyer Leader.
Interior scenes were filmed aboard a British Type 15 frigate - The HMS Troubridge. This is why even though this is supposed to be an American Frigate. Much British military equipment can seen around the ship.
When Sidney and Martin are flying out to the destroyer. They are aboard an H-19 helicopter which was called the Whirlwind by the British. The ship they fly by and eventually land on is a Type 15 frigate. The ships pennant number F159 can be seen. F159 was the HMS Wakeful.