I really liked this movie, except..
I didn't like the part near the end when Denzel and Lithgow were on that tower doing another arm wrestle and Lithgow forces Denzel's arm through a sharp wire on the tower--EWWWW... Denzel screams and looks faint as he pulls his arm off the wire, but then a few seconds later is cheerily taunting LIthgow again, as if he'd never been injured.. very unrealistic. I would think he'd be in way too much pain to continue taunting him like he was. I know some tough guys (like STallone) can be really tough, but i thought that was carrying things a bit too far.
Other than that, i really liked this movie. And LIthgow is TERRIFIC as a bad guy.