First, there was an official press release listing the full cast of Harry Potter and the Half-Blood Prince. Next, rumors spread that Madonna's kid Lourdes was offered a role in the film. Now it's your turn: MSN is currently hosting a contest in which the winner is given a walk-on role in the sixth Harry Potter flick. No joke. This is huge for you Potter fanatics -- I imagine it doesn't matter if you're asked to play Kid #100 during a crowd shot, because you'll get to walk away and tell your friends the following: "I played a role in Harry Potter and the Half-Blood Prince! Beat that ... with your stupid Nintendo Wii house party!"

By now you probably want to know what you have to do to enter. Well, all you'll need is a lighter, three pens, two pencils and a giant plastic monkey. Wait, wrong contest. What you actually need to do is head on over to MSN's Harry Potter page and take a little quiz. I only saw one question on the site, having to do with what actress played Dolores Umbridge in Order of the Phoenix -- a question I even knew the answer to, having not read or watched any of the books or films. Once you answer the question, you fill out a page with a bunch of info on yourself and then submit it. I imagine they'll randomly choose one winner and they'll get to participate in a scene. Ah, but here's the catch: You have to be a resident of the United Kingdom, age 12 or older. Sorry American citizens. And upon reading the rules, you get a visit to the set and participation in a crowd scene. Still cool for any Potter fan who lives in the UK. If that's you, head on over and enter now! Harry Potter and the Half-Blood Prince arrives in theaters on November 21, 2008.