This.

by Claude Errera , Tuesday, May 07, 2013, 18:08 (4008 days ago) @ Beorn

I think "cautiously exited" is a nice way to put it. Regarding book details in the trailer, I hope they stick to this approach and don't give too much away before the movie's out. Part of the magic of the story, as I recall (it's been 13 years), is that you're learning about the story as Ender learns about it. I find it saddening when trailers give away too much plot.

The trailer actually seemed to tell a different story (sort of the OPPOSITE story) than the book - so maybe they ARE going to do a good job of selling it as you watch.