I love the movie, it's one of my absolute favourites, but I still think the book adds a lot more and I don't think I would have liked the movie as much if I hadn't already read the book. The book really gives the whole event a sense of scale with the entire us and Soviet navies on the go. The movie is more focused just on the main players and while still really good it misses out on a bit of the surrounding drama.
I love the movie, it's one of my absolute favourites, but I still think the book adds a lot more and I don't think I would have liked the movie as much if I hadn't already read the book. The book really gives the whole event a sense of scale with the entire us and Soviet navies on the go. The movie is more focused just on the main players and while still really good it misses out on a bit of the surrounding drama.