1. think of every survival horror film you've ever seen that takes place on a derelict spaceship.
2. mash their plots all together into a single, barely coherent mass.
3. fill it with the flattest, most forgettable characters imaginable.
4. give dennis quaid the lead.
5. add a happy ending.
that's Pandorum.
it's nice to look at, i'll give it that. but as for plot, there's nothing here that you haven't seen before...