I am surprised at the harsh criticsm that this film has come in for here, and in other forums. It has been consigned by some to the stalk and slash section of the DVD rental shelves, while others dismiss it as second hand sci-fi. Personally I really enjoyed it. The blend of suspense, mystery, horror and gore is supplemented well by strong performances by Laurence Fishbourne and Sam Neill. Sure, some of the death scenes and other set pieces are a little hackneyed, but this is more than compensated for by that rarity amongst films - an original (and if you actually sit down and think about it, quite challenging)concept. On an intellectual level this questions our pursuit of knowledge (in this case technology) and asks us if we are fully prepared for what it could reveal. Top stuff.