i think it has some faults but over all a good watch i give it 7/10 few problems i noticed were.
a destroyer where the heck that come from ?
the captain shouting about he is a hero (something a captain would never do for fear of underminding the president)
the men being portrayed as drunks and incompatant (captain Igor Kurdin quoted from)
who was that girl who smashed the champagne bottle a common peasent

some one high up in the offical party department or daughter of a central commitie member maybe but a peasent
the movie makes for good viewing and tells the story fairly accuratly the rest is the american portrayl of it i mean not many warships would want to get close to a russian submarine especialy in one of the biggest naval exercises of the year