Well I have managed 30 minutes of it (inbetween doing other things - thats how rivetting it is) and it is boring beyond belief, nonsensical, and the two main characters (there are only 4 in the movie), a robot and a researcher have all the charisma of a pair of slugs on diazepam. Its one of those 3rd rate movies where nothing but claustrophobic garbage happens for 99% of it and if you can stay the course I presume you may actually see the 'alien ' in the final five minutes. Dont waste your time.