I previewed this on imax thursday morning. I'm personally not really a batman fan, so going into the movie I didn't know a whole lot of the story behind it. Still, I enjoyed it overall. The only kind of downside that I thought was how long it was. While it is action-packed throughout, it got me wondering if it was close to the end a few times. Overall, a good movie though. I recommend seeing it especially if you're a batman fan.
EDIT: IDK if they're showing this at all shows, but lol @ the harry potter "trailer." You'll know what I mean if you go see it.