It has signatures all over it and I even managed to recognize some of them! (Good guys who put in their internet name below their signature!)
I've never really done any panorama images but I made this setup where I had some strings going over the poster which was laying on the floor so I could keep the height of my camera consistent. Then I used the Microsoft ICE to stitch the images together. I had to crop out some of the borders to make it nice and square.

Click for full size (10172 x 4480)
Signatures what I've found so far:
Unfortunately the golden marker which was used to do some of the signatures is like dust now. If I'd wipe the poster it would come off. The black marker is permanent though! The golden marker also leaves a dim black mark so it's readable with some light.. But the camera cant catch that too well. Some of the golden signatures are re-done with black which is nice! I guess Relic's QA (Quality assurance) department was not aware of this faulty golden marker!
Enough with ranting about the one damn marker though! It's an honor to receive one of these posters and it will for sure remind of this period of time in the future.
Huge thanks to Relic Entertainment for sending it over to me. I will not sell this on Ebay even though I was advised to do so.