Event Horizon Reviews
Paul W.S. Anderson (in a rare moment of creative inspiration) does a great job of keeping up a great tense atmosphere and the practical effects are superb (although instances of CGI in the movie are one of the few weak points). There are plenty of great tense sequences, effective jump scares, and absolutely messed-up imagery.
The acting isn't too bad either, actually the quality of the acting goes a long way in selling the plot. Sam Niell and Laurence Fishburne really shine in this but the rest of the supporting cast are solid too, especially Sean Pertwee.
If you love sci-fi and horror, then check it out!
Edit: Ignore everything I said above. I revisited this movie and it's dog shit. I must have been on something to have given it that generous score of 3. It's more of a 1/5 or 1/2 / 5.
This is definitely more about utter madness/despair/psychological horror than, say, aliens, which I enjoyed because that's my thing. But if you're looking for something straightforward with scary space monsters, look elsewhere. Still has a good amount of violence and gore though.