The latest issue of Previews catalogue, by Diamond Distributors, is offering a “Ghostbusters movie art poster”, which as it happens, turns out to be a reprint of the original theatrical poster for Ghostbusters. Check it out here, or at your local comic shop. The poster’s SRP is $7.25US.
Thanks to GozerJr for spotting this.
The company producing the poster is Pyramid Posters in the UK – they also have a variety of Ghostbusters mini-posters, postcards, stickers, and buttons available as well at their website. Thanks Seb for the info.