I really enjoyed the movie. I read other reviews and most are correct, the movie is entertaining but not accurate. But it's a movie and most of us, 95% of us, have no real idea about what happens in war.
The reason I wrote this review was because no one mentioned the most ridiculous part of his movie, which was the fact that the Russian naval ship fired on its own officer command station. That to me was so uncharacteristic of the Russians and the reason why I could only give the movie 3 stars. Otherwise, the movie was extremely entertaining and never boring and not littered with unnecessary themes etc. Great movie!