This link that I have provided you will lead you to what I think is the beat-all, end all of flash movies.
http://www.newgrounds.com/portal/view/192340
But hold on, dear readers! This is only the teaser to that said movie, which was made about four years ago by an NG user by the name of RobsH66. I highly suggest you watch this first, just so you know exactly what it is you're getting into.
Now comes the real meat.
http://www.newgrounds.com/portal/view/466240
http://www.newgrounds.com/portal/view/466296
http://www.newgrounds.com/portal/view/466553
Again, the same user put this together (finally!) and after four years in the making, two out of three parts have made their way into the Flash Portal.
Bear in mind folks. This will be updated once the rest of the movie is out. But for now, enjoy what I have bestowed unto you. Watch, enjoy, tell your friends, grab a bowl of popcorn, turn the lights off and kick back. Do whatever's necessary to say, "Not today, folks! I'm watching this!"
UPDATE! 10/26/08
As promised, folks! Part 3 of Episode 1 is now in the books! You can now watch the trilogy in the comfort of your own room.