I was redirected to a confusing page the moment after I clicked Allow. There was no clear call to action, except to explore/follow some users on the top-right corner. How can I start making my list? Is there somewhere that I can browse all the movies on your database, and then annotate them according to whether I've seen it, not seen it, etc.?

My suggestion is to suggest a few movies to the user right from the get-go, so they can start making their list immediately. Also, make a viral loop: say, let people share their movie list on their Facebook profiles and entice their friends to make and share their lists, which in turn creates a viral marketing cycle.

Last but not least, if you're going to build a Facebook app for the Facebook demographic, you really need to hang out more on Facebook.

All the best.