I too am very skeptical about anything like this, and have to say that they did a very....plain?....cheap?....shady?...job on the description. Most similar auction for a cause listings have a TON of information and details about the cause, etc. This one is nothing but some text.
eBay ID history seems legit though:
User ID Effective Date End Date
lionsgatefilms Apr-24-08 Present
But I am slightly suspicious about their feedback history. The account has been used to BUY a lot of stuff, including
http://www.ebay.com/itm/220924839008Why would LIONS GATE FILMS buy "The Hunger Games -81 pg-77 Day Shoot Schedule: Day 11 to 77 & Cast Call Sheets"
Shouldn't they already have a copy? Or two? Or two hundred?
They only seem to sell posters though....
I agree that something seems amiss.