The "Big Rat" at the beginning of the film is actually an overweight Remy form the hit 2007 animated comedy Ratatouille. Remy become incredible fat/lazy from gilt after the release of the Ratatouille Video Game for PS2 (Notorious for making people go insane) and was included here as a tribute.
The ending to the movie was a actually a cut ending form the 1968 Science fiction classic 2001: A Space Odyssey.
The Director of this picture is widely regarded as a Oreo addict.