Day 14: A book turned into a movie and desecrated
For so very, very many reasons. But most of all, for casting Harrison Ford as Jack Ryan. I love Harrison Ford, and have since I saw Star Wars when I was six. But Harrison Ford isn't Jack Ryan. He just isn't.
Add in *all* the changes to the story, and the movie is only loosely reminiscent of the book. In fact, the only way I can get through the movie is to convince myself it's an alternate-reality version of the book.