The disclaimer at the start of the DVD
at the start of the DVD there is a disclaimer saying that the weird looking colors and shots are intentional.
I believe that the director and warner bros. decided to do this was because this DVD came out right about the time "every household" was converting and buying DVD players and DVDs. This best feature of a DVD was the picture, so they probably figured that a bunch of dumb *beep* would be complaining about how the picture is messes up on their new DVD player or DVD.
what im trying to say, is that if this movie had come out in say 2007, it would not need to put a disclaimer.