Divergent  - Veronica Roth I read the book after seeing the movie, but that was a while ago. I did know the big lines of the story but was also very surprised by the book, it made me feel emotional at some points.
I find Tris an interesting character, not your typical damsel in distress, but she is not perfect, she has her flaws. And I love the way her's and Four's relationship is growing through the story. The they are both new to the whole 'being-in love' thing and that that is shown alongside their fear with being in love.
And I really can't stand Peter. In the movie I could kind of appreciate him dual to his good looks, but in the book so far I hate him.
I will start Insurgent soon! I hope to finish the trilogy this week!