Alex Kobbs (Kooberz) is no stranger to LEGO stop motion films. His works have been featured here in the past. His latest film based on the Portal 2 video game has just become public.
http://www.youtube.com/watch?v=6V0R8Qpjl8Q&list=PL6CE54910432EFBFC&index=1
If you like it, be sure to cast your vote in the Machinima Interactive Film Festival.
Be sure to check out his Youtube Channel for his other films.