Streaming a movie using DivX or MPlayer?

So, I want to watch a movie (let's take Pitch Perfect, for example) and I'd like to watch it on my DivX or MPlayer. I just don't know how to get the video to display in either of these players, even trying to use the URL. I'm trying to get the video from http://www.freemoviesaddict.com/movies/watch/3935 which I always use to watch movies, but the ones for Pitch Perfect buffer slowly when just in Firefox. If anyone could help me out with this, it would be much appreciated!