The problem with Jack's backstory in the novels is that he's kind of a business geek (in Red October
the novel, he spends quite a lot of time just sitting around crunching numbers). I'm not surprised they had to jazz it up a bit for this film.
@MrLight: I agree, Baldwin did a GREAT job as Jack in Red October
the film. That is one of my favorite films of all time, in fact. I've seen it a dozen times in the theater. I'm not a huge fan of Baldwin's acting but that one I did enjoy. He's my favorite Jack yet.