The girl whose over-praised acting got her an Oscar nomination for Juno did a much better job in an earlier, better, and very different movie - Hard Candy. Almost every review I've read included a spoiler from the first third of the movie (even the label on the Netflix DVD had a spoiler), so I'll avoid that by just saying it follows the consequences during one afternoon when a male photographer is inappropriately flirtatious with a teenage girl. If you like movies with a lot of moral ambiguity, even some remaining at the end, this is a good one. There's one stomach-churning scene, but the violence is implied and off-screen. You also have to suspend your disbelief about aspects of the girl's character, but not as much as in Juno.
I can't say too much more without giving away spoilers, so I'll just stop by recommending it.