I just read a review of it, face it, there are no actors anymore who fit his description, Hollywood is full of short guys now. I was really bummed, too, I've read every book and await the next ones. Besides Daniel Woodrell, Lee Childs is the only author I will buy a hardcover of, rather than wait for a cheaper paperback edition. Oh, and Elmore Leonard, but he's mostly retired now.
As one reviewer commented "I know Jack Reacher, and Tom Cruise is no Jack Reacher.
The greatest obstacle to discovery is not ignorance -- it is the illusion of knowledge. - Daniel J Boorstin