I really don't know how to feel about this...my rating my change over time, but my initial reaction is that it's not one of MNS' best movies. It's hard to explain the issues I have with it without giving too much away, but I'll just say that I thought that the source of the problem is just a little "too easy" -- and KINDA cliche. Overall, the movie has that traditional MNS tension (as a former Philadelphian it was interesting that they had to say things like "TOWN OF Princeton" and "Rittenhouse Square PARK"), but some of the acting in the film left a lot to be desired, and kinda took me out of the situation a bit .... I actually watched this again for some reason and it didn't get any better. Just like before, the premise of the movie is compelling, and creates for some real tension, but the acting and the way the movie plays out (slowly) is just not very satisfying. It reminds me vaughly of War of the Worlds and how the build up is great and really interesting, but the finale is a huge dud.