I don't know how being in the UK effects amazon, but here is a link to the poster.
https://www.amazon.com/Posters-USA-Runner-Gosling-GLOSSY/dp/B071G21HWD/ref=sr_1_3?ie=UTF8&qid=1512859466&sr=8-3&keywords=blade+runner+2049+poster
or
https://www.amazon.com/Posters-USA-Runner-Gosling-GLOSSY/dp/B071G21HWD/ref=sr_1_3?ie=UTF8&qid=1512859466&sr=8-3&keywords=blade+runner+2049+poster
or
https://www.amazon.com/BLADE-RUNNER-2049-Original-Harrison/dp/B07642YFQ9/ref=sr_1_28?ie=UTF8&qid=1512859707&sr=8-28&keywords=blade+runner+2049+poster