My wife and I just watched this and we're honestly not sure how we feel about it. The movie is rather slow with a few fast paced scenes, but is intriguing enough that you want to see it through to the end, (mostly because you hope they're going to explain everything.) I sort of understand but I sort of don't. I think I get the overall jist of the movie, but they left a lot of questions unanswered. They give you a little bit of information here and there, but you're still left scratching your head at the end. In fact, I may have to watch it again. I learnded more about the movie by reading the back of the box, than from the actual movie. The movie itself takes place almost entirely underground. One of the quotes on the back of the box says the movie's a mix between The Bourne Identity and Predator. It's nothing like either movie! In fact, it's more like a sci-fi version of The Decscent or The Cave, (just not as good.) I'm still going to recommend this movie, only because I think someone else might understand it better than us. I would wait for it to drop in price though to about $9.99, or just rent it. Also, another ok sci-fi movie (that's just as confusing) is Dante 01, which came out recently. It was good, but it also left too many question marks at the end.