Reddit has a subreddit called /r/fullmoviesonyoutube. This subreddit lists all the full movies that are available on youtube.

Use the reddit JSON API to retrieve data from /r/fullmoviesonyoutube, the Rotten Tomatoes API to retrieve all the movie metadata and ratings info, wikipedia API to retrieve cast and crew information, throw in some JavaScript/Android magic, and MASH UP ALL THE THINGS to create a netflix like web/mobile app for watching movies for free*!

*Purely an academic exercise.