Well, a full trailer for Easy A is out, and it's almost as completely charming as I'd hoped:
The setup is unusual, without being implausibly quirky--Emma Stone agrees to help her gay friend who is being bullied fake losing his virginity at a party. His social status gets improved immediately, but word gets out about her role--and other guys want her to help. She gets branded a tart by the girls in school, but rather than being particularly ashamed, she embraces it. In other words, a teenage heroine who is sure enough of herself to manipulate, even revel in, the misinterpretations people have about her.
The adult cast is quite fine as well. The one fly in the ointment for me is Amanda Bynes, who is far too sweet and funny an actress (and a pretty decent singer, too) to get stuck doing a mediocre impersonation of a terrific Mandy Moore performance (speaking of which, I wish we could get more of her, Eva Amurri, and Macaulay Culkin operating at the same velocity they were in that movie). I fear she's getting more and more generic, when she had the promise to be a real original. Unless there's much more to her than shows up in this trailer, Easy A won't set her back on the right track.