I finished the book last night so decided to rent the movie today. I was disappointed that my literary giant Jack Reacher is nowhere to be seen; instead, the cinematic version is a small, sensitive, and vulnerable soul who gets beaten up as often as he delivers a beating. I guess the size of the leading man makes that necessary.
Having worked in Hollywood, I understand that movies have a limited framework - 3 acts blah blah blah, but the book's complex structure, filled with discovery and twists, is reduced to a predictablelinear tale which diminishes the suspense, replacing it with routine gunfire and car chases (odd, because Reacher usually avoids weapons and is supposed to be a lousy driver). Coby Smulders is the movie's high point with an excellent portrayal of the framed Major Turner but the subplot involving the young girl is unnecessarily expanded.
It's a standard thriller like so many others. It's no Bourne (or anything by Besson), but it's okay for a rainy day as long as you aren't a fan of the books.