As far as I can tell, there are only four significant features of this picturesque valley: the farm (which includes farmhouse and church), the local store (which appears to have only serviced this farm at any point), the pond of fresh water that for some reason isn't radioactive, and the waterfall that is totally radioactive but doesn't link to the pond in any way.
Our leading lady has been here for an indeterminate amount of time, but she's been hunting and fishing and farming with the help of her dog, and she seems to be doing pretty well with it. Then she comes across a strangely outfitted man (Chiwetel Ejiofor in a protective suit) who appears to be either insane or delirious once he realizes that he's found an inhabitable location. Turns out, he's a scientist and a bit of an engineer who finally left his protective bunker in the hopes of finding a place just like this. Eventually, the two of them have some alcohol-induced romantic moments that never quite get past the almost-kissing stage.
Chiwetel says that he doesn't want to rush anything - they have lots of time. Alone, just the two of them in this world, they have lots of time with the future ahead of them in this peaceful valley and all of the food and shelter that it provides. The beautiful woman is his for the taking, and he wants to take his sweet time with her. And then, the unthinkable happens. Chris Pine. Chris Goddamn Pine. Not only is there now competition, but it's Chris Pine. All alone in the galaxy with this beautiful woman and what seems like a whole planet, and Captain Kirk saunters in to dazzle her with his pretty blue eyes and down-to-earth wholesomeness.

Acting was very good
Story was decent
Dialog was stilted
Production was excellent
Direction was good
Bottom Line: A movie a wife/girlfriend should really like, and the guy probably won't hate.
2.5/5