Kristen Stewart is enchanting
Possible Spoilers: She was wonderfully understated but totally convincing. Fetching is the word. Seriously fetching. And she and Jesse Eisenberg have real chemistry. Much more than either do with their spouses, which makes the ending all the more poignant. Good people, married to good people, doing the right thing. Not your typical morality tale, but very nice.
The early scene of the two of them in the car, she was transfixing. Barely moving anything but her mouth, she slowly changed from a country-girl-in-the-big-city to a serious object of desire. I was taken with her just as much as Eisenberg.