KavaMovies is a film cataloger that will allow you to organize and manage all the films that you have watched or that you already have. You will also have the possibility to add the films that you want to watch, thus being able to configure a representation of your film taste.
You will also have the chance to be able to download the information directly from the Internet. KavaMovies is capable of searching for information on IMDb (The Internet Movie Database), Amazon and Wikipedia, and it can also integrate with iTunes and BitTorrent, where you will be able to access the content by buying it or downloading torrent files.
The program has information about the actors, directors, languages, year... What's more, it is capable of recommending films based on the data that you input to be able to increase your collection.
Try this complete film cataloger for Mac. KavaMovies has a very common interface that is easy-to-use, that make it a very advisable selection.