'Event Horizon' is very much an atmospheric sci-fi horror. It does not rely on gore (although there is enough of that) but rather it is the creepy atmosphere that engages the viewer. Andersen successfully creates a tense, depressing, and claustrophobic atmosphere. The suspense and pace are well maintained. It pays tribute to several movies of the same genre (like 'The Shining', 'Aliens' etc). Character development is slightly weak but the actors do a good job and the viewer cares for them. Sam Neill, Laurence Fishburne, Kathleen Quinlan, Joely Richardson, Richard Jones and Jason Isaacs do a fine job with what they're given. The sets look very unwelcoming and creepy. The special effects and sound effects are good. The cinematography is superb. The plot is a little complex and difficult to follow in the beginning leaving the viewer wondering with what exactly is going on but this becomes easier with repeated viewings. In my view, 'Event Horizon' is an underrated film and perhaps did not get enough recognition because it did not have any stars or enough 'monsters' and 'blood' or perhaps the subject was a little too complex for some to grasp.