You can buy your own full size movie poster through cafepress.com
http://www.cafepress.com/hullabaloo
Our poster designer, Nuno, already ordered a copy to check the quality and said it was fantastic and gave me the thumbs up to make it available to everyone.
I've priced it at my cost ($17.99 US) and am making no money on it, but if you think it's something that would decorate your wall nicely then I'm happy to let you have it.