Good, fun, little movie. Definately a popcorn flick. A bit smarter than one would expect. Affleck and Eckhart were really good in their parts. Uma Thurman didn't get to kick as much ass as I would've liked, but if you haven't seen Kill Bill yet this won't be a problem. :-)
There were way too many moments in this movie where someone had a gun on someone else, and I just wanted to yell "JUST SHOOT HIM ALREADY," there was absolutely no reason not to in any case.