I’ve never written about Facebook apps before, but I have just finished making an app with my partner.
The app is called The Free Cinema, and like the name implies, it’s a cinema, but free. There are all the latest movies available to watch for free.
You pay “tickets” to watch movies on the app, and to get more tickets you either invite more friends, or do a simple survey to get many more tickets.
I suggest you check it out: http://apps.facebook.com/thefreecinema/