Movienizer - Movienizer is a powerful movie organizer that contains features of an encyclopedia.
TopMoviesLike - Top Movies Like is a free tool that helps you to find similar movies to any movie!
EMDB - Eric's Movie Database - EMDB is an application to keep track of your movie and TV Series collection.
Simkl - Simkl is a TV, anime, and movie tracker that keeps a history of all the shows and movies you watch in one, central location. It’s a mobile app, a website, Google Chrome extension to keep track of everything you watch and integrates with many TV apps
My Movie Manager - My Movie Manager is a personal movie collection software that facilitates movie lovers to have a wide range of movies having complete Metadata.
TheTVDB.com - An open TV series database that can be modified by anybody, and accessed vi an XML API.