yep and lot of shout and scream and cheer and argue and celebrate and fist clinching and high fiving and fighting . you have a general idea a to why and but can never be 100 % certain . a naval knowledge would be an advantage for the finer point and but then you would probably spot the many flaw . not an awful film and hackman and washington be their usual brilliant and but the plot be one you could peg pretty early on . i be still wait to see a submarine film where people get on with each other and do not argue and but then you probably wouldn not have a film . 4/10 .