VUZIQ is an app from Cydia that allows you to download and install videos to use as a ringtone. It works perfectly, is simple to use, and integrates right into the default calling screen. It replaces the background of the normal calling screen with the video itself, sound included, and is pretty cool.

I did not make this video, nor am i responsible for the contents of it.

This tweak is available for free from the BigBoss repo.