The latest TV spot for The Dark Knight shows a little more of the comic aspect of the late Heath Ledger's performance as the Joker.

"I don't want to kill you - what would I do without you? To them, you're just a freak...like me!"

This trailer retreads the psychological terrain of the original Batman (1990) perhaps more than any other, and goes some way to re-establishing the more traditional symbiosis between the two characters.

On a slightly more worrying note, Batman is allowed a little cell-time by Lt.Gordon, and seems to be taking the opportunity to duff the Joker up, slamming his head against a table. Of course, it's all out of context and snipped together, but it does look a little bit 'guantanamo' for our noble caped crusader...

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