This movie was full of action, and I will agree with many other reviewers, Michael B Jordan did a good job with his acting and betrayal of John Kelly. This was a good start to the whole series that was John Clarke.
The book was my first introduction to Clancy's work, and I would say my favorite as well.
That all being said, this was not based on that book at all, this was not Without Remorse. Different storyline completely. They could have had it called anything else as the start to these movies, much like the start of The Hunt for Red October and all the movies that followed. This should have been the name if the movie that ended them all, or close to the last.
I did enjoy the movie, but I was looking forward to something with the plot from the book.