For those expressing disappointment over the inadequacy of special features on the blu-ray release of “The Dark Knight”, this might cheer you up. Remember that Jokerized trailer reel that fans received during the viral marketing event for the release of the 3rd trailer (including the teaser)? Well, it looks like it has snuck itself into the blu-ray release as a cleverly-hidden easter egg. Here’s what you have to do:
1. Pop the Special Features disc into your player.
2. Access the Galleries section and play Trailer #3
3. While it’s playing, enter the following numerical code on your remote (spelling out “JOKER”): 56537
Tada 
Note: This only works on the blu-ray release, not the DVD.
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