Brad Pitt has gotten some terrible roles, but he's also gotten some good ones in which he has been nothing short of brilliant. 12 Monkeys, Inglourious Basterds, and Fight Club were some of his better movies.
Shame to hear about the bad screening of what sounds like it could have been good.
I like books, though, and try to get a hold of this one as I expect it is probably typical of a Tom Clancy novel's fate. Most of the movie adaptations have been horrible, though The Hunt for Red October, the first one to film, was not bad, despite my hatred of Alec Baldwin. Don't even mention The Sum of All Fears. No worse movie adaptation has ever been made in all of history.