This was a decent watch of a movie. The problem is that every "twist" was beyond predictable and the movie was formula in every way. I thought Chris Pine was great as Jack Ryan and I actually thought Kevin Costner was the best part of the movie. Kenneth Brannagh was pretty crappy as the lead villain and was beyond stereotypical in every way as an 80s-ish Russian bad guy. There wasn't a lot of action except for a couple of scenes and they were all pretty basic just like the rest of the movie.
I would somewhat recommend people checking this out. It's not a bad watch but its not a great watch either. Its a movie that belongs in the late 80s/early 90s in terms of the level of "suspense". I'm thinking they should kind of go ahead and leave this franchise alone.