Well it's been blocked, but I googled the file name, and it's the one where he's written "Why so serious?" on the frosted glass?
YES! I want that poster!
That's probably -the- most amazing poster I've seen.
The person/people who designed that needs an award.
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I had a quick look around on the 'net.
To get a normal sized poster (30x27") or so, it's going to set you back about £50. They're apparently rare...
But you can get smaller ones quite cheap
Ebay linkSorry that it's so long, as you can see, it's an Ebay link.
I don't know if you're from England or not, but I think it might give an idea about price?