You need to know that this is essentially a reboot of the franchise because the movie begins with Jack still in college and then quickly goes through his stint in the war, injury, and rehabilitation. To do that they had to get someone young and Chris Pine is pretty much the perfect age, 34, to play a character in their early 30s.
Personally, I never really warmed to Harrison Ford as Jack Ryan. Ford’s age dictated that they jump into his career mid stream and so we could never see the early years of Ryan’s accidence. And in my opinion “The Hunt for Red October” is by far the best of the Jack Ryan movies and they should have made more movies with Alec Baldwin as Ryan.
The villain of the story was very cardboard. There are only a few short scenes that clue the audience into why he’s so motivated to destroy the USA. There wasn’t enough substance to the villain to see the contrast between he and Ryan.
The last 30 minutes of the movie is fast paced and action packed. In fact I noticed that my heart rate was quite elevated for the final 10 minutes of the movie.