The following video contains a series of stop-motion movies made by me and my brother several years ago. He plotted and animated all the movies up until the clones feature, while I edited them on the computer, unevenly cropping out bedroom in the background, adding special effects, splicing all the images together, incorporating sound, and creating credits. John Williams deserves mention for the music.
Admittedly, most of those could use a little work. This, however, is possibly the most amazing fight ever made with Lego bricks. Based loosely on the video game, The Force Unleashed by Fancypants:
The Duel, directed by Namchild, is another brilliant action short with Legos.
The following is a behind-the-scenes documentary by Nick Durron of the best zombie movie ever. The film sold so well that a sequel by the name of Zombie: Exodus was produced; it's also worth your time.
For those who want to see more Lego films, I recommend scouring the archives of Bricks In Motion. Some of these movies have become immensely popular on Youtube, most notably Lego Black Ops, which deservedly has 16 million views but is a little bloody to post on The Author's Files.