I loved the movie, bought it on DVD, so when I saw the book by a retired US Navy captain, Peter Hughthausen (say that 5 times fast!) I grabbed it.
VERY interesting – gives the whole story of the sub, the shoddy and unsafe reactors and nuclear history of the former USSR, the human story, and the current reality of tons, literally tons of highly radioactive junk sitting in Russian ports and in dumping places in the world’s oceans.
Highly recommended.