Neat. Enjoyed that. You get a bit of a sense of what life is like on a sub watching movies, but it's cool to see more of the day-to-day stuff. Those dudes - the white ones, anyway - must be incredibly pasty after a few months of living in a tube.
Submarines strike me as the closest earthbound approximation to living in a space shuttle for a prolonged period of time: complete reliance on instrumentation, cramped quarters, surrounded by potentially lethal atmosphere at all times... what a life.
Submarines are a marvel of engineering. Every cubic inch has a purpose; no space whatsoever is wasted. And while you'd think confined camaraderie like that would drive people nuts, it actually drives them together (though it helps that these guys have tough psych profiles).
In order to get exercise they rely on exercise bikes and treadmills. I wonder what other adjustments they have to make to keep sailors mentally and physically fit. Anyhow, any disadvantages to submarine life are more than made up by the extra pay.