PANDORUM is of the "haunted spaceship" sub-genre of horror film, a cross between SILENT RUNNING and EVENT HORIZON with a good dose of ROBINSON CRUSUE thrown in. A man named Bower (Ben Foster of 30 DAYS OF NIGHT, SIX FEET UNDER) awakens from his cryogenic sleep chamber to find himself aboard a massive spaceship. He has no memory, which is a side effect of a long sleep, though it slowly comes back to him as the movie progresses. He awakens another person he finds, Payton (Dennis Quaid) who is also part of the navigation crew. They are both locked in to the control section of the ship and try to figure out what is going on. Bower finds a way out only to discover that there is something else alive in the massive ship and it's not quite human. There's a tribe of ferocious looking creatures and they hunt humans. They are sort of like pseudo-zombies, like the Reavers from SERENITY or the mutants from THE MUTANT CHRONICLES.
Bower remembers that he's an engineer and by observing the flickering lights realizes that something is wrong with the ship's power. With the help of Payton, who has the schematics of the ship where he is on the deck, he cautiously makes his way to the reactor. He finds some other survivors--a woman, Nadia, who has been awake for six months and a wild looking man, who doesn't speak their language and seems very primitive. Just how long has Bower been asleep?
I won't get in to what he finds and the satisfying twist ending except to say that it's a fun ride. Not only one of the best horror movies of 2009, one of the best movies of the year.