Good concept but flawed. This is a difficult movie to review because it is on the verge of being a classic movie. It is unique, it has an interesting plot, and has damn good special effects for its time.
It starts off with a well shot setup and it seems like it tries for some 2001 with Alien vibes. You start to see the editing and screenplay failing at this point already though. In the alien ship, there are a lot of fast cuts that pull you out of what should be an awesome scene. It remains this way and just kind of withers away throughout the rest of the movie. Kind of good, but never great.
The biggest faults this movie has are the wooden acting/screenplay (probably more faulting the screenplay than anything), the rushed and forced editing, and the lack of character development. I hate to say it but if this were reimagined, it could be a great movie. Better, less action movie directing, a better script, allow longer single shot scenes without cuts, and make me care about the characters a little.