This documentary shows life of the Russian sailors on the biggest submarine in the world.
In German with crappy English subtitles. Still it is worth seeing.
2:
http://www.youtube.com/watch?v=VOV8FGpjX4Q
3:
http://www.youtube.com/watch?v=dvMmmYMOrn4
4:
http://www.youtube.com/watch?v=2kI4vgq6YcU
5:
http://www.youtube.com/watch?v=z7r4OENexX8