The movie manufactures ALL of its drama by withholding information. That's a cheap trick, and that's all this movie does.
Once you know what's going on, information is STILL pointlessly withheld, solely to generate drama. I mean, literally EVERY SINGLE discovery or deduction makes you think, "wait, why didn't they just say that in the first place?" The entire plot of this movie could have been avoided with a simple infographic pasted to the inside of the hibernation chamber.
This isn't science fiction. It's pointless information disparity. Go watch Moon instead.