WP Movie Ratings is a wordpress plugin that makes rating movies very easy. At its core is a Firefox bookmarklet, which combined with Internet Movie Database (imdb.com) and a little bit of AJAX magic lets you rate movies with just 1 click. Also, there is no need to write the title of the movie as it is automatically fetched from imdb. Optionally, you can also write a short review for each movie. The output from this plugin is a list of recently watched movies, which you can put anywhere on your blog (it's a matter of one simple function call from the template). Published movie reviews are hReview compliant.
You can download it here: