CaptainWacky
I want to smell dark matter
The Dark Knight plays as normal right up to the point where the Joker asks Batman "do you want to know how I got these scars?" Picture fades out and the Joker movie then plays in its entirety. After that's over, the screen goes black for about a minute before finally fading back into The Dark Knight. Batman then answers "no" and you realise you've just wasted two hours.