It'd be great to be notified on the Dashboard when there's a special showing happening near me of movies that aren't new releases. There are lots of small, independent theaters that do special screenings, re-releases, or film festivals, or whatever.

For example, I had Vertigo on my Watchlist, and there was a showing at my local theater, and it would've been great if that appeared on my Dashboard.

I know getting to that data is difficult, and a lot of it is probably impossible to get in a usable, automatable format, but there are a lot of showtime sites that probably have APIs, or you could even allow people to add Facebook feeds or iCal links to their favorite theaters, so you gradually build a database of smaller theaters that way.