I wasn't expecting much, knowing this was another one of those based on a game.  But I had hopes, so I went, and I'm glad I did.  This was a horror movie in the ruest sense and of the highest claiber.  If you like a scary, suspenseful, shiver down your back, jump out of your seat movie, you'll like this.  Get it - you won't regret it.  These people are stuck down there which always makes for a good horror movie. To that add some vile zombies...like the night of the living dead, and viola! And best of all - it's made by the same guy who made "Event Horizon".  If you liked that, you'll like this, and if you never saw it, SEE IT!