Was anyone else expecting everything that happened in the "present" time frame to end up being all an illusion caused by the mirror to mess with the kids? I was sure that it was going to end with the brother killing the sister and then himself after getting angry at her about how he was locked up for so long whilst she was free followed a shot of both characters as children laying dead...
http://twitter.com/#!/lazyawol
Yup, there was definitely a point in the movie where I was like "Oh OK, so the mirror is trying to mindbang the kids with scenes from their own future".
But I was moreso expecting the two time frames to somehow mesh together in the end.
I think that's just what happened.
The very last shot is of Young Kaylie watching the cops and ambulance pull away.
That made me think the kids' scenes were reality, while the adult scenes were the mirror showing them they would never be able to defeat it.