Windows Media Center 7 has some nice features when it comes to viewing movie information, but it is somewhat limited. If you are interested in taking it to the next level so you can see even more information, grab a copy of Media Browser.
Media Browser can be customised to show your movie collection in various ways. Whichever way you prefer it, it fits in really well with the default Windows Media Center theme. It goes beyond what the built in Windows Media Center Movie Library shows, by adding in cast information, and a bunch of pretty background pictures taken from the movie.
I use Media Center Master to retrieve the information for the movies, but there are likely a few programs that can do this. With all this information on hand, Media Browser shows as much information, if not more than can be found on a DVD cover.
I love the cast and crew section. If I find a movie with an actor I like, I can read a biography of the actor and see what other films I have with them in.
I don’t use this all the time, but when I am struggling to figure out what to watch, having enticing pictures is helpful. I have set this up on my system as an alternative to the built in library. It is easy to put Media Browser next to your Movie Library icon with Media Center Studio.
Media Browser is great if you have a large collection of movies because it loads them up much quicker than the built in Movie Library. It even has built in support for TV series and your music if that is something you are after.
Media browser is available for free from the Media Browser forums.
Hack7mc also has a great rundown of all the features.