On paper this looks like a good time waster, dependable lead, monsters, some kind of 'Science' twist. Believe me all the elements are there. Joe Flanigan reprising his man of action role (something he does very well), John Rhys-Davies reprising his stock nasty-man character that he has been trotting out in B movies for years (Anaconda III and IV anyone), even some choice one-liners along for the ride, enjoyed the Jaws reference but really it needed a bigger scene to be effective. And that is precisely the problem with this, it doesn't quite deliver in all the essential areas. The cast do their best, but the script is very sadly lacking in tension or even a real sense of urgency, and you just know stupid people are going to do stupid things for all sorts of completely ridiculous and illogical reasons. The other problem with the script is that far too many ideas come from other, much better, movies. Seriously, if you are going to borrow from other films, particularly famous ones, try to give the ideas some kind of original twist. If you can stay the distance you find yourself noting down all the stuff you've seen before and where you have seen it. I bought this because I like creature features and I like Joe Flanigan, he has an insouciant style which comes off as effortless and invests the characters he plays with a certain devil-may-care charm. Unfortunately here, he really has nothing to work with so it's all very much painting by numbers. Really, if you have absolutely nothing better to do, you can have a little fun spotting all the bits they pinched from other films (and let me emphasise a LITTLE FUN), but otherwise adds nothing to the canon of creature features, sci-fi movies, or action and adventure.