The Greatest Fan Film Ever Made?

Here's a (lengthy) fan made film.  Topless Robot posted this video the other day.  It features just about every character you might want to see.  Do you think you can make it through the entire video?  It is a little slow in the beginning.  There are moments it shines.  You never know who's going to show up or be dancing to Cher.  Check it out.  I'm not sure if it's the 'greatest' film made but it's pretty clever.